Ah that's helpful. Most of the cars I've tried so far seem to handle well on default setting, so it's probably no big deal. Apart from the starter car, I've used all borrowed cars for everything so far, but I had half a million dollars so I thought I'd treat myself to a racing car and mess with it. I was a bit surprised that I couldn't actually alter anything until I went back to the garage and bought suspension upgrades from the shop. Understandable with a street car, but the Exige is a proper race car, so that confused me.
Also is it right that you can't change tyre compound from the setup meu, you have to go back to the garage and pay someone $50 to put on tyres that you already own?
Also, is there a way to choose an alternative official livery when you've bought a car, or do you only have the choice between default livery or design your own? When you borrow a car, you get a good choice of liveries, but when I bought this one, it only had one option as far as I could tell.
Edit:
You are right, I've just started a new race and noticed that the whole grid when set to identical, has a R634 number, so whatever upgrades you buy get automatically added to the AI, so I'm starting to figure things out.