The first AWD car I got was the RUF CTR2. But I'm sure you don't wanna waste several hours like I did just to buy it...
I found the 3kgt VR-4 to be the fastest straight line accelerator of the AWD cars, and it handles pretty well. THe subaru Impreza WRX Sti is pretty cool, but it's handiling isn't. The lancers are good at both...
Don't get a Skyline if you want to be able to make decent turns. My Skyline can't turn worth a sh**. But it is fast in the 400m
Anyways, blah blah blah, get the newest 300GT VR-4, you won't regret it...