This is one of the new cars...I particularly like it because it's a bit like a motorcycle with four wheels. The max RPM is 11,000...I'm pretty sure this is the highest of any VDrift cars. It works great for me but there are some issues:
Understeers a lot - probably needs rear hinge points moved back
Brakes are really really touchy, using them at all during a downshift is likely to causes spinout
The engine sound is not loaded for some reason, the game complains that it can't find the file despite the fact that the file is there.
The amount of over and under steer on this car may be different now than it was when you made this post - if it is, then ignore me. If it's not, I'd say currently, based on my experience, it's pretty close to accurate. I love this car.
It has indeed been tweaked a few times. I used it as my test car after I got GT Legends and GTR 2 to try to match the understeer/oversteer found in those games. Glad you like it! Chris thought it had a bit too much understeer at high speed, but that's similar to GTR 2.
It's also very close to accurate for that era of F1 car. With no wings to hold those things down, and engines making that much power, if you give it some welly at high speeds, they do get terribly light on the front.
Now....who's going to get us together a couple of modern F1 cars?