It would be nice if you could change maps for example: the 'jungle' and 'village' and 'mountains' and 'town' would be on the top left corner so if you click on them you should go to the maps. And dont forget the 'city' button so you can go back to your spawn point! + if you want maps.
I love how you can drive in cockpit view, but why can't you do it in the pick ups? Also, you should add the car engine noises for example: Sports coupe should be loud, Both of the trucks should have a normal sound and the bus should be very loud. I give it a 4/5, but if you could add those features, It would be a 5/5!