How bout run what you brung? When I first contemplated joining this crazy resource sucker we call RC racing, I had no idea of classes, no delusions of winning, I just wanted to do something fun in a social setting with other nerds of my ilk. I say, if you wanna race rc cars then just go race some rc cars. If you're worried about "decimating the entire freagin' field, brah" than spend to your heart's desire. If you're like how I was, then get a car that's appropriate for your particular track (onroad,offroad,buggy, truck,etc), charge a battery, make sure the wheels go right when you turn the wheel to the right, and run it. Just my 2 cents.