Suggestion to make playing better

How about a Multiplayer function for playing with friends, cruising around a city? I have an idea how it should be done.
First everyone designs his own car and when ready, go cruising around a city or village, or racing. Lets hope there will be a function like this later, pretty hard to do a city from scratch I guess...
First everyone designs his own car and when ready, go cruising around a city or village, or racing. Lets hope there will be a function like this later, pretty hard to do a city from scratch I guess...