I think there should be more engines implemented into the drag version of it, such as a 440 big block, 383 stroker, 632, LS3 etc etc and then possibly add nitrous and/or turbo/twin turbo/superchargers on top of that. May need bigger tyres in the back for the more power but i think it would be fun to mess around with.
With the wheelie bar off and switched to the manual 4 speed (NOTHING ELSE), I can get it to wheelie and scrape the rear bumper. 9 mph backwards than dump the clutch red lined in first