The Sumitomo HTR A/S P01 achieved the best fuel economy at 26.5 mpg in our BMW E92 328i Coupe which is a surprise to me as I didn't expect them to do that well.
|Ultra High Performance All-Season Tires||MPG|
|Dunlop SP Sport Signature (W&Y) ||26.0|
|Pirelli PZero Nero All Season ||26.4|
|Sumitomo HTR A/S P01 (W) ||26.5|
|Yokohama AVID ENVigor (W) ||26.1|
This information is based on our team of test drivers completing approximately 500 miles per tire over several days on the same 6.6-mile test loop. I would recommend using this fuel data as a good tire buying tie-breaker since the mileage differences are small and would only result in a difference of a few extra fill-ups every year.
You can read the full test results here.