Are you going to be driving the coupe or Spyder on the track regularly? Is that where most of your activity will be? If not, then don't worry about the difference in speed because the vast, vast majority of time, unless you are at the top end, you won't notice it from regular use. I have both right now and I enjoy them both. In fact, I tend to have a bit for fun in the Spyder than the coupe. And as TTBear said, not matter what yopu choose, there will always be someone that is faster than you.