[Solareon]

it would probably lag if there was more than one player. perhaps instead of a game just make a track (like horse track) where you can cruise around in and race against an npc and if you win you get some upgrade to the kart. Then you can drive the kart around graal and put it in a pack like the clothes changer (thank god I got that before I was pked) you would have a gas station in most of the major travel areas and one or two gas stations in remote areas of the world.