option 1: 2wd http://www.modelsport.co.uk/kyosho-a...roducts/379346
option 2: 4wd http://www.modelsport.co.uk/kyosho-d...roducts/386958
in either case, all you need is the AA batteries for the radio. hold on to the remaining budget for repairs and upgrades.

personally, i'd get the 2wd for a first hobby grade. they are more tail-happy than 4wd which will teach your son how to control a slide. many people (myself included) feel they are better drivers because they started on 2wd and later switched to 4wd. that and you mentioned drifting, with as little power as these models have stock, the 4wd might not slide much at all.