| At 100 speedo mph the actual mph is 94 mph on the GPS... I've had 45 profile F1's and much prefer the 40's on the Yoko's. I'm running 205/40/17 and I can't fault them at all tbh, especially at £55 a corner.
You'll love them.
Oh and if you're lowering the car to 'track' levels then stick with 205's as my 215/45/17's rubbed like mad at the back with the Cross. | 
