I've never really been in favor of unique exclusive preorder things like this in the first place. I'd agree that there should always be something in a game like this that's both better than AND harder to get, just to make earning something via merit count for something in the long run.
But by the same token the difference between "31.9" and "31.4" is probably all but unnoticeable while playing the game unless you managed to line up two of these cars and drove them side-by-side in a straight line for a few miles. The fact that the preorder car is technically faster on paper is mostly just a talking point to make the preorder people feel uber despite the fact they didn't really "earn" it.
