Yaris VS MX5 showdown

[Jason@SportsCar]

Originally Posted by ivanstepul

so i will be faster if i run the 185/15/65 vs the 205/17/45?

No, I said same width, you also need to get the aspect ratio down. Some of the good street tires only come in a 195-50-15, but that is still going to be quicker than a 205-17. Your 17"s are more than an 1" taller than stock, that is a massive hit to acceleration, as well as the impact on handling due to increased height.

I know its not what you want to hear, but you have a losing battle on your hands.