I initially went to HP to buy the XT2 because it was on sale. In comparison to the Rail, the rail was much more durable and only $40 more so I bought it. W O W!!!! The Rail has "stupidiculous" speeed!!! I cart wheeled it twice, the second time was serious and no problems!! I am running a 4s 3000 and also 3s 2200(x2). Be careful not to burn speed control when running the series, I got a puff of white smoke out of the ESC!! I ran it on the baseball diamond, parking lot, sandbox at the park.... AWESOME PERFORMANCE in the sand w/o sand paddles!! This buggy has so much torque that im getting sidewayz on takeoff, may need to stock and extra esc though! Im just getting back into cars for the 1st time since a kid and this is a GREAT start!! HIGHLY RECOMMENDED BUGGY!! no joke