Before I bought this set of 255/45ZR-20 Hankook Ventus V12s. tire of choice for my mixed driving was Goodyear Eagle F1 Supercars in the same size. After viewing comparison tests between the V12's & the F1's (and being dismayed by the ever increasing price of the F1's), I decided to give the V12s a try. The result: total satisfaction with the V12's!!! Tire treadwear life was nearly identical to the F1s! My use of the tires consists of spirited street driving combined with brutal Autocross driving. Compared with the F1's, the V12's delivered the same treadwear, stickier performance when cold, better dry traction, & comparable cornering/steering performance......All at less than half the price of the F1's!!!! To allow me to rotate the tires on my 4,200lb Magnum SRT8 & to provide better turn-in, I run the 255/45's at all 4 corners (38psi front/34psi rear hot). As the V12's are uni-directional (one direction of rotation), I rotated them front/rear until about 8,000 miles (when the outside tread was worn down to the treadwear bars), then remounted them inside out (on the opposite side of the car) to put the nearly unworn edges on the outside. HOLY **** why did my tires wear so quickly? This year I did over 100 Autocross runs at Qualcomm Stadium SD which is arguably one of the knarliest autocross surfaces in the country (and my driving technique is not quite as refined as it should be. My street miles are Spirited as well. I would expect 25,000 miles+ from these tires if I did not use them for autocross. My driving style makes it time for new V12s at 16,500 miles.