I won a fair amount of races with my losi xxx-s.
My Hot Bodies cyclone was unstoppable.
I'm a tamiya championship series racer now, so I run a tb-03 in VTA because I only have to carry TAMIYA parts. I never have needed them. That car is even faster because I'm super comfortable with it.
The most important part in VTA is droop, ride height, and camber. The chassis really doesn't matter.
VTA is my favorite class. It's the easiest on your wallet and requires the most driver skill of any of the sedan classes.