[WSSix]

Welcome to the forum! The good thing is that the cars share the same platform so getting suspension and brake parts won't be a problem. What I would do is look into the other parts the cars might need such as interior pieces or body panels to help you decide which way to go. Since you're not set on one or the other, I'd let that dictate which car to choose. The last thing you're going to want to do is spend all your money on that hard to find part instead of spending it on the go fast and look good stuff.