sengming,

You can probably switch the bodies of the cars with no problem,
but Takara doesn't sell these bodies by themselves, so in a way there's no use in switching bodies, because one will be a Trueno and the other will still be an RX-7. Shucks!

I got my RX-7 and I thought the body had the real Choro Q cartoonish look. I like it, but in a cute way. I like the NSX-R in a cool, stylish way. I don't have a Trueno to compare it to, so when I get that, I'll probably agree with Adam that the Trueno is better

The RX-7 is my first time playing with the racing wheels, and I realized that I don't want the racing wheels on my NSX-R. While the racing wheels are great for taking turns, the car isn't as wacky. What I mean is, it controls a lot more smoothly than the cars without racing wheels.

So for racing on a track, I will definitely use the RX-7. I tried it on my track and it was a LOT easier to go around the bends!

On the desktop, the racing wheels don't do as well at slow speeds. When I try to cruise around on the desktop, the car doesn't start off in a straight line. It turns a little to the side, depending on which way the front wheels are facing. To me, this is not a bad thing, because it makes me feel that the RX-7 was designed strictly for high-speed racing!

So I'll play with my NSX-R on the carpets and desktops, and I'll bust out the RX-7 when it's time for the races!