Well, those 'scrap' cars that are everywhere, aren't those abused? Nobody fills them up, they are just used to drive to a location, leave it there untill it respawns, and that ain't too RP or realistic eh?
But actually that's not my point in this topic. The point is, why not include bikes (mainly for newbs). If you call riding a bike abuse ... but I know what you mean, in San An bikes drive faster than 'real' traffic. BUT as Alec already managed to put on a 'Real-life-driving-speed-thing-mod', cycles could be limited to like 25km an hour (about 15 or 16 mi./h). Then you can't call riding a bike 'abuse'.