Writing about the
Hankook Ventus S1 evo2 given
64% (245-45-18-)
Driving on
a combination of roads for 15000
average miles
I purchased a 2017 Insignia Grand Sport with these tires fitted from the factory. Initially I thought they were a good tire. Decent grip on wet and dry, reasonable feedback and not too harsh.
I also discovered that these are the sound absorber tires with a foam lining which reduces noise - this is where things went downhill.
The car began to develop a vibration through the steering which I put down to a balancing issue or possibly damage to a wheel on our lovely UK roads. I took the car to a local tire fitter, who attempted to balance the wheels up, but kept getting differing reading every time the wheel was spun.
We agreed that it may be better to swap front wheels to rear and see how that goes. Initially, this worked and the car drove smoothly again for a few weeks, then began to vibrate (this time at the rear of the car) at 55mph+ to the point where it was impossible to sit at anything above 60mph - not ideal on a motorway run.
Did some searching online and found a few reports of the foam liners moving/distorting and causing balance problems. At this point the car was becoming undrivable on anything other than a trip to the local shop, so I changed to Goodyear F1 Assymetric 5 all round, which although are noisier than the Hankook, I can now use the car properly again.
To sum up, I would avoid these tires.