The RDX is a great car! Easy to setup, extremely narrow chassis(1cm narrower than a Pro4), extremely low profile, and rock solid!
It's got lots of grip, and is easy to drive, not a bad choice at all...
I've raced the Pro4 for a while, and won with it, this car is easier and faster to drive... But of course, it's because it's a car that fits my driving...
Martin Sørlie, 1985, R/C since 1995.
TLR - Spektrum