Yes, it looks like the RS has very slight contours. I don’t think it’s “elongated”, but it does look like it has the very slight bumps on the outside. I have the R330 and the bumps are somewhat pronounced on that.

As far as how the contours feel, again I have the R330 and other completely round rims. I do not find any particular issue using the R330 for rally/oval. I don’t drift so I can’t help you there.

I do know for drift and rally people complain about catching the LED strip on the top of the RS on their fingers. I don’t own it, but that is a common complaint.

Personally I’d kick in the slight bit of extra cash and get the 320. Then you have the universal hub and can add whatever rims you like in the future.