The car came as a fresh import with four Bridgestone Potenza S001, for which I'll leave a separate review. However, for the purposes of comparison, I would say they had the sharpest turn-in of any tire I've ever driven, very "sporty" and with excellent grip in both the dry & wet, although all at the exense of comfort, with a very "crashy" ride.
Unfortunately, the S001 were no longer available in my slightly unusual tire size and so I plumped for the older RE050A, which seemed a bit of a retrograde step, given the RE050A was launched in 2004 and replaced by the S001 in 2011.
I'd also heard it performed better in hotter climates.
Nevertheless, the S001 were so good and these RE050A would have been the OEM fitment on my Subaru, when the car was built in 2006.
I needn't have worried, turn-in isn't quite as sharp, but it is still very good, with excellent dry (and more importantly) wet grip, even on cold wet UK back roads I failed to find the limit, giving me the confidence to push on regardless. And what's more, they are noticeably more compliant than the S001, giving a noticeably smoother ride, which for a performance family estate, makes for a better compromise.
I don't really notice tire noise, as I'm either cruising with the stereo on or pressing on, when the engine note takes centre stage.
As for fuel consumption, I wouldn't expect my 301ps / 278lbft AWD estate to sip at the cup of economy, while I'm giving it the beans and I doubt whether a set of eco tires would make much of a difference.
My only concern at this stage is wear, as I've heard bad things and the Treadwear Rating of only 140 is half that of the S001, but so far so good.
One final point, is that I've noticed most of the poor reviews seem to relate to the Run-flats.