Add all car parts and better engine sounds (I2 I3 I4 I5 I6 I8 V4 V6 V8 V10 V12 V16/W16 B2 B4 B6 F2 F4 F6 ETC.)
With different fuel options gas diesel unleaded ETC.
Flat plane or non flat plane V8's
I'd love to roll coal diesel trucks too!!
I'd love to get the glorious sounding revs off of a 6.7 Powerstroke/6.6 Duramax!!
Add very customizable speedometers (metric visible in MPH if imperial, imperial visible in km/h if metric), or tachometers any value you want
Aggressive offroad tire tread
Yes, indeed we need one, we really wanted to have car engines sound realistic without taking those prop engines