Yeah, tests are pretty darn controlled. For each set of tires tested, the tests are run on the same day with each set of tires mounted to a different BMW. I think RaceLogic products are used for timing.

The A/S 3+ is a great tire. Heard mention of it outperforming the DW.

TireRack will test the new ExtremeContact Sport this spring... should have significant steering response over the DW. 30k mile warranty with 3-year flat tire towing doesn't hurt.