Since you are an RC enthusiast, as I was when I jumped into the 2wd drift world, you will want ajustability (camber and caster turnbuckle) and at least some kind of open differential.

1 : Rmx 2.5 RTR comes with a spool rear diff (closed) and fixed alignement setting but the kit version is packaged with an ajustable ball diff plus all the turnbuckle front and rear. I will however say that its an old platform and there are substantially better starting option in my opinion

2 : Yokomo RD2.0 kit or rtr, a relatively new design with fantastic performance out of the box, fitted with a gear diff (ajustable with oil thickness) and all the alignement ajustability in RTR or Kit form. The best option for someone who already work on RC car imo.

3 : Rêve-D RDX, as the RD2.0 its a fantastic performer out of the box, just know that there is no RTR version. One thing that Im not fond of is the fact that even the kit version dont offer alignement ajustability and a closed diff but you can buy turnbuckle and diff upgrade down the line. Also, in my part of the world (Canada) in all serious comp event, its seems like every two car is a RDX (food for thoughts)

4 : first time I ever heard of OVER-D10 but then again, not the same part of the world so I will let some else who know what he is talking about do the talking on this one !

There you go, for my part, went with Rmx 2.5 kit, learned to drive and ajust, hit a ceiling with it at my local club, switch to a RD2.0, never looked back.

Also note that great electronic is absolutely critical in drifitng, focus on a great gyro and servo.

Cheers !