feedback on Convexcast Vehicle vs Raycast Vehicle

[MasterM]

I am a newcomer to bullet physics and i cant seem to figure out which vehicle method is best for me.

Lets say i am aiming for a vehicle physics similar to "need for speed most wanted"...which vehicle method would you recommend me?

And lets say i am aiming for a "grand theft auto" type vehicle physics which vehicle method would you recommend me?

Which vehicle method do you recommend more and why?

I would like to have some feedback on this topic,
Thank you in advanced.