Did M2 just change the tires to get that slalom speed?
I agree that it would seem fair to measure all the vehicles performance on the same tires, but Subaru chose to shoe the WRX with the potenzas - it was their choice. Once you change tires, how do you objectively decide when to draw the line: "All the test vehicles were fitted with the same Tein coilover suspension, the same NGK sparkplugs, etc. etc" I'm not being pedantic, I'm just trying to point out that the vehicles leave the factory as a package and Subaru has the choice of specification for peripheral components like tires. As soon as you start modifying vehicles during comparisons, the whole affair becomes impossible to manage and the results impossible to analyze objectively. Is all I'm saying.