drive a 2WD sapph m8. thats probably the best way to test it as u will use most of the parts from one. ive been in one. and i thought it was good definatly looks cool with the back wheels smoking up but it was very tail happy. depends on how u drive.
my driving style prefers 4wd as i like to go really quick down B roads etc. but if ur into greasy roundabouts and donuts. DO IT!