Its great for a beta. I'll say that. You got the model of a classic buggy down but im not sure if buggys are dune cars or off roaders. either way it is good at doing jumps when im playing with it. the only issue is its steering. could probubly have a bigger steering range
the buggy looks great but its very under powered. the front wheels tend to fall off very easily and has a terrible turning radius. but over all this can be an amazing mod with some tweaks and fixes to it.
I think you should make a 2 seat version because it will allow it to turn way better for it would have a shorter wheelbase. Also I think it would make it look even cooler. The model is great though especially for beta.