E10 is very cheap quality and not alot of future upgrade options. Get a Tamiya TT01, HPI sprint 2, although sprint 2 doesnt have alot of future upgrades like counter steer kits. Also Yokomo drift packages are good, the shaft drive cars. Any 4 wheel drive car will work really, just make sure you pick something that has alot of options for you to upgrade in the future.
Yokomo DMAX - Daily drifter!
HPI SPRINT 2 - Wife's
I drift at CHANCE CIRCUIT!!!!! And SPEEDWAYPAL!!!
I live in japan pm me if you need something hard to find, I'm paypal verified!