Goodyear Eagle F1 Asymmetric 6 vs Pirelli P Zero PZ4

In this article we will be looking at independent tire test data, and real world driver reviews of the Goodyear Eagle F1 Asymmetric 6 and the Pirelli P Zero PZ4 to find out which tire is best for your own driving.

The good news is that both the Goodyear Eagle F1 Asymmetric 6 and Pirelli P Zero PZ4 are Max Performance Summer tires designed to be fitted to Passenger Cars, which means comparing the two tires is relatively simple.

Both tires are hugely popular in the market place with drivers, and both have been featured in independent tire tests.

Eagle-F1-Asymmetric-6 VS P-Zero-PZ4

Test Results

Independent comparison tire tests are the best source of data to get tire information from, and the good news is there have been nine tests which compare both tires directly!

Out of these nine tests:

  • Goodyear Eagle F1 Asymmetric 6 finished ahead of the Pirelli P Zero PZ4 in seven of the tests
  • The Goodyear Eagle F1 Asymmetric 6 and Pirelli P Zero PZ4 drew in two of the tests

While it might look like the Goodyear Eagle F1 Asymmetric 6 is better than the Pirelli P Zero PZ4 purely based on the higher number of test wins, tires are very complicated objects which means where one tire is better than the other can be more important in real world use.

Let's look at how the two tires compare across multiple tire test categories.

Dry Braking

Looking at data from nine tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during seven dry braking tests. On average the Goodyear Eagle F1 Asymmetric 6 stopped the vehicle in 0.5% less distance than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
34.1M
Pirelli P Zero PZ4
34.27M
Dry braking in meters, lower is better

Best In Dry Braking: Goodyear Eagle F1 Asymmetric 6

2023 Summer Tire Market Overview
225/45 R18
Goodyear Eagle F1 Asymmetric 6:33.2M Pirelli P Zero PZ4: 34M
2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:34.3M Pirelli P Zero PZ4: 34.5M
2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:33M Pirelli P Zero PZ4: 32.7M
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:33.2M Pirelli P Zero PZ4: 34M
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:33.8M Pirelli P Zero PZ4: 34.1M
2025 Summer Tire Test Shootout
225/40 R18
Goodyear Eagle F1 Asymmetric 6:34.1M Pirelli P Zero PZ4: 34.6M
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:33.3M Pirelli P Zero PZ4: 33.9M
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:34M Pirelli P Zero PZ4: 34.6M
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:38M Pirelli P Zero PZ4: 36M

Dry Handling [s]

Looking at data from two tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during two dry handling [s] tests. On average the Goodyear Eagle F1 Asymmetric 6 was 1% faster around a lap than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
83.95s
Pirelli P Zero PZ4
84.8s
Dry handling time in seconds, lower is better

Best In Dry Handling [s]: Goodyear Eagle F1 Asymmetric 6

2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:99.1s Pirelli P Zero PZ4: 100.1s
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:68.8s Pirelli P Zero PZ4: 69.5s

Dry Handling [Km/H]

Looking at data from five tire tests, the Pirelli P Zero PZ4 was better during two dry handling [km/h] tests. On average the Pirelli P Zero PZ4 was 0.11% faster around a lap than the Goodyear Eagle F1 Asymmetric 6.

Goodyear Eagle F1 Asymmetric 6
113.08Km/H
Pirelli P Zero PZ4
113.2Km/H
Dry Handling Average Speed, higher is better

Best In Dry Handling [Km/H]: Pirelli P Zero PZ4

2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:114.1Km/H Pirelli P Zero PZ4: 115.1Km/H
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:120.9Km/H Pirelli P Zero PZ4: 121.3Km/H
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:100.6Km/H Pirelli P Zero PZ4: 100.5Km/H
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:120.9Km/H Pirelli P Zero PZ4: 120.2Km/H
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:108.9Km/H Pirelli P Zero PZ4: 108.9Km/H

Wet Braking

Looking at data from nine tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during five wet braking tests. On average the Goodyear Eagle F1 Asymmetric 6 stopped the vehicle in 3.34% less distance than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
36.7M
Pirelli P Zero PZ4
37.97M
Wet braking in meters, lower is better

Best In Wet Braking: Goodyear Eagle F1 Asymmetric 6

2023 Summer Tire Market Overview
225/45 R18
Goodyear Eagle F1 Asymmetric 6:25.4M Pirelli P Zero PZ4: 24.9M
2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:40.8M Pirelli P Zero PZ4: 41.3M
2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:40.6M Pirelli P Zero PZ4: 39.6M
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:39.7M Pirelli P Zero PZ4: 38.9M
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:23.8M Pirelli P Zero PZ4: 26.6M
2025 Summer Tire Test Shootout
225/40 R18
Goodyear Eagle F1 Asymmetric 6:28.3M Pirelli P Zero PZ4: 32.3M
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:43.3M Pirelli P Zero PZ4: 45.2M
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:44.2M Pirelli P Zero PZ4: 50.5M
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:44.2M Pirelli P Zero PZ4: 42.4M

Wet Handling [s]

Looking at data from two tire tests, the Pirelli P Zero PZ4 was better during one wet handling [s] tests. On average the Pirelli P Zero PZ4 was 0.87% faster around a wet lap than the Goodyear Eagle F1 Asymmetric 6.

Goodyear Eagle F1 Asymmetric 6
69.05s
Pirelli P Zero PZ4
68.45s
Wet handling time in seconds, lower is better

Best In Wet Handling [s]: Pirelli P Zero PZ4

2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:68.4s Pirelli P Zero PZ4: 66.7s
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:69.7s Pirelli P Zero PZ4: 70.2s

Wet Handling [Km/H]

Looking at data from five tire tests, the Pirelli P Zero PZ4 was better during three wet handling [km/h] tests. On average the Pirelli P Zero PZ4 was 0.42% faster around a wet lap than the Goodyear Eagle F1 Asymmetric 6.

Goodyear Eagle F1 Asymmetric 6
80.54Km/H
Pirelli P Zero PZ4
80.88Km/H
Wet Handling Average Speed, higher is better

Best In Wet Handling [Km/H]: Pirelli P Zero PZ4

2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:86.2Km/H Pirelli P Zero PZ4: 85.2Km/H
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:76.7Km/H Pirelli P Zero PZ4: 77.2Km/H
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:86.4Km/H Pirelli P Zero PZ4: 86.7Km/H
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:73Km/H Pirelli P Zero PZ4: 72.6Km/H
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:80.4Km/H Pirelli P Zero PZ4: 82.7Km/H

Wet Circle

Looking at data from one tire tests, the Pirelli P Zero PZ4 was better during one wet circle tests. On average the Pirelli P Zero PZ4 had 0.58% higher lateral wet grip than the Goodyear Eagle F1 Asymmetric 6.

Goodyear Eagle F1 Asymmetric 6
8.52m/s
Pirelli P Zero PZ4
8.57m/s
Lateral wet grip in m/s squared, higher is better

Best In Wet Circle: Pirelli P Zero PZ4

2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:8.52m/s Pirelli P Zero PZ4: 8.57m/s

Straight Aqua

Looking at data from seven tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during five straight aqua tests. On average the Goodyear Eagle F1 Asymmetric 6 floated at a 1.02% higher speed than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
81.97Km/H
Pirelli P Zero PZ4
81.13Km/H
Float Speed in Km/H, higher is better

Best In Straight Aqua: Goodyear Eagle F1 Asymmetric 6

2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:77.9Km/H Pirelli P Zero PZ4: 77.5Km/H
2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:79.3Km/H Pirelli P Zero PZ4: 79.3Km/H
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:106.3Km/H Pirelli P Zero PZ4: 104.4Km/H
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:79.1Km/H Pirelli P Zero PZ4: 79.9Km/H
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:75.9Km/H Pirelli P Zero PZ4: 73Km/H
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:80.3Km/H Pirelli P Zero PZ4: 79.9Km/H
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:75Km/H Pirelli P Zero PZ4: 73.9Km/H

Curved Aquaplaning

Looking at data from five tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during three curved aquaplaning tests. On average the Goodyear Eagle F1 Asymmetric 6 slipped out at a 2.77% higher speed than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
3.25m/sec2
Pirelli P Zero PZ4
3.16m/sec2
Remaining lateral acceleration, higher is better

Best In Curved Aquaplaning: Goodyear Eagle F1 Asymmetric 6

2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:2.66m/sec2 Pirelli P Zero PZ4: 2.75m/sec2
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:3.93m/sec2 Pirelli P Zero PZ4: 3.8m/sec2
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:3.38m/sec2 Pirelli P Zero PZ4: 3.4m/sec2
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:3.17m/sec2 Pirelli P Zero PZ4: 2.99m/sec2
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:3.12m/sec2 Pirelli P Zero PZ4: 2.87m/sec2

Subj. Comfort

Looking at data from three tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during one subj. comfort tests. On average the Goodyear Eagle F1 Asymmetric 6 scored 3.69% more points than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
6.23 Points
Pirelli P Zero PZ4
6 Points
Subjective Comfort Score, higher is better

Best In Subj. Comfort: Goodyear Eagle F1 Asymmetric 6

2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:7 Points Pirelli P Zero PZ4: 6 Points
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:4.7 Points Pirelli P Zero PZ4: 5 Points
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:7 Points Pirelli P Zero PZ4: 7 Points

Noise

Looking at data from seven tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during seven noise tests. On average the Goodyear Eagle F1 Asymmetric 6 measured 1.86% quieter than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
70.04dB
Pirelli P Zero PZ4
71.37dB
External noise in dB, lower is better

Best In Noise: Goodyear Eagle F1 Asymmetric 6

2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:66.5dB Pirelli P Zero PZ4: 66.9dB
2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:67dB Pirelli P Zero PZ4: 70dB
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:73.2dB Pirelli P Zero PZ4: 73.7dB
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:70.9dB Pirelli P Zero PZ4: 71.1dB
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:68dB Pirelli P Zero PZ4: 69dB
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:71.3dB Pirelli P Zero PZ4: 74dB
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:73.4dB Pirelli P Zero PZ4: 74.9dB

Wear

Looking at data from three tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during three wear tests. On average the Goodyear Eagle F1 Asymmetric 6 is predicted to cover 44.13% miles before reaching 1.6mm than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
55740KM
Pirelli P Zero PZ4
31140KM
Predicted tread life in KM, higher is better

Best In Wear: Goodyear Eagle F1 Asymmetric 6

2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:63200KM Pirelli P Zero PZ4: 32800KM
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:50000KM Pirelli P Zero PZ4: 32500KM
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:54020KM Pirelli P Zero PZ4: 28120KM

Value

Looking at data from three tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during three value tests. On average the Goodyear Eagle F1 Asymmetric 6 proved to have a 49.58% better value based on price/1000km than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
9.55Price/1000
Pirelli P Zero PZ4
18.94Price/1000
Euros/1000km based on cost/wear, lower is better

Best In Value: Goodyear Eagle F1 Asymmetric 6

2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:8.7Price/1000 Pirelli P Zero PZ4: 19.51Price/1000
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:13.3Price/1000 Pirelli P Zero PZ4: 21.38Price/1000
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:6.66Price/1000 Pirelli P Zero PZ4: 15.93Price/1000

Price

Looking at data from four tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during four price tests. On average the Goodyear Eagle F1 Asymmetric 6 cost 7.66% less than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
445.75
Pirelli P Zero PZ4
482.75
Price in local currency, lower is better

Best In Price: Goodyear Eagle F1 Asymmetric 6

2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:430 Pirelli P Zero PZ4: 435
2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:700 Pirelli P Zero PZ4: 745
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:550 Pirelli P Zero PZ4: 640
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:103 Pirelli P Zero PZ4: 111

Rolling Resistance

Looking at data from seven tire tests, the Goodyear Eagle F1 Asymmetric 6 was better during six rolling resistance tests. On average the Goodyear Eagle F1 Asymmetric 6 had a 9.43% lower rolling resistance than the Pirelli P Zero PZ4.

Goodyear Eagle F1 Asymmetric 6
8.45kg / t
Pirelli P Zero PZ4
9.33kg / t
Rolling resistance in kg t, lower is better

Best In Rolling Resistance: Goodyear Eagle F1 Asymmetric 6

2023 AutoBild Sports Car Summer Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:8.5kg / t Pirelli P Zero PZ4: 9.83kg / t
2023 AZ UHP Summer Tire Test
235/35 R19
Goodyear Eagle F1 Asymmetric 6:8.39kg / t Pirelli P Zero PZ4: 9.46kg / t
2023 AutoBild UHP Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:8.01kg / t Pirelli P Zero PZ4: 8.33kg / t
2023 Sport Auto UHP Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:8.3kg / t Pirelli P Zero PZ4: 9.6kg / t
2025 AZ Summer Tire Test
225/45 R18
Goodyear Eagle F1 Asymmetric 6:8.35kg / t Pirelli P Zero PZ4: 8.6kg / t
2025 Auto Bild Summer Performance Tire Test
225/40 R18
Goodyear Eagle F1 Asymmetric 6:8.97kg / t Pirelli P Zero PZ4: 8.88kg / t
2025 Sports Cars Tire Test
245/35 R19
Goodyear Eagle F1 Asymmetric 6:8.6kg / t Pirelli P Zero PZ4: 10.6kg / t

Abrasion

Goodyear Eagle F1 Asymmetric 6
0.09mm/1000km
Pirelli P Zero PZ4
0.15mm/1000km
Millimetre of tread lost per 1000km driven, higher is better

Best In Abrasion: Goodyear Eagle F1 Asymmetric 6

Real World Driver Reviews

Tire Reviews also collects real world driver reviews for the Goodyear Eagle F1 Asymmetric 6 and Pirelli P Zero PZ4.

In total the Goodyear Eagle F1 Asymmetric 6 has been reviewed 136 times and drivers have given the tire 86% overall.

The Pirelli P Zero PZ4 has been reviewed 74 times and drivers have given the tire 74% overall.

This means in real world driving, people prefer the Pirelli P Zero PZ4.

Best Review for the Goodyear Eagle F1 Asymmetric 6
Given 100% 225/40 R18 on a combination of roads for 1,000 spirited miles
I am a massive Goodyear fan. I had the Assym 3's on a previous car and never looked back.

I have now had the Eagle F1 Asymmetric 5's, Goodyear Eagle F1 Supersports, Michelin PS4 and even some Avon's (for a brief period) on my current car - a Golf GTI Clubsport 40.

I mix up my driving a lot - lots of motorway driving but also lots of hard street driving and B road blasts, I find it massively important to have the best tires possible to allow me to push my car as hard as I can in a safe manner.

I was massively impressed with the Asymmetric 5's, the sheer grip... Continue reading this review using the link below
Helpful 1119 - tire reviewed on March 30, 2023
View all Goodyear Eagle F1 Asymmetric 6 driver reviews >>
Best Review for the Pirelli P Zero PZ4
225/40 R18 W on for 0 miles
Really good !
Replace very very good Yokohama V105 one year old.
To try them out.
First-class comfort (top) + rolling silence
A little above the Yoko on the dry,
In the rain, they are incredible ! Well above all that I have tried :
Dunlop RT, PS3, Yoko V105, Hankook V12 K110.
No idea about wear again ... The +:
- Braking (this is a big highlight)
- Motricity
- Handling
They are equipped with protections of the rims although the option is not specified (in France).
The sides are stiffer than the PS3 for... Continue reading this review using the link below
Helpful 360 - tire reviewed on June 27, 2017
View all Pirelli P Zero PZ4 driver reviews >>

Conclusion

In conclusion the Goodyear Eagle F1 Asymmetric 6 performed better in dry braking, dry handling [s], wet braking, straight aqua, curved aquaplaning, subj. comfort, noise, wear, value, price and rolling resistance, while the Pirelli P Zero PZ4 performed better in dry handling [km/h], wet handling [s], wet handling [km/h] and wet circle.

Which tire is best for you depends a lot on your driving style and situation, plus what you want from the tire. Comparing all the data in the tire reviews database, on balance Goodyear Eagle F1 Asymmetric 6 seems to be the best tire overall.

However, it's important to note that both tires have their strengths.

Remember, the best tire for you might depend on which of these factors are most important for your specific driving needs and conditions.

Goodyear Eagle F1 Asymmetric 6

Overall Winner: Goodyear Eagle F1 Asymmetric 6

Based on the tire test data and user reviews we have in our database, the Goodyear Eagle F1 Asymmetric 6 has demonstrated better overall performance in this comparison. However, as you can see from the spider diagram above, each tire has its own strengths which should be considered in your final tire buying choice.

Similar Comparisons

Looking for more tire comparisons? Here are other direct comparisons involving these tires:


Footnote

This page has been developed using tire industry testing best practices. This means we are only comparing tests which have had both tires in the same test.

Why is this important? Tire testing is heavily affected by things like surface grip levels and surface temperature, which means you can only compare values from the same day. During a tire test external condition changes are calculated into the overall results, but it is not possible to calculate this between tire tests performed on different days or at different locations.

As a result you will see other tests on Tire Reviews which feature both the %s and %s, but as they weren't conducted on the same day, the results are not comparable.

Lots of other websites do this sort of tire comparison, Tire Reviews doesn't.