I dont think the RS needs 4wd but if you do want it you can get a 4X4 conversion from Wolf and its a 15grand upgrade! My Rs Mk1 is amazing its over 350bhp and it can be a bit twitchy in the wet but aslong as your confident you can get the power down and give it some stick. My mate has an RS Mk2 which is over 400bhp and its soo different to mine, its a lot smoother and a lot more controlled, not as raw as mine, more refined, Mk2 has revo knuckle, mine doesnt but they both have a diff.