Nah, dont buy that ESC, its for a plane, and has no heatsink. as for the motor, go straight to the source, hobbyking. get a motor, esc and lipo in one hit.
It will be 50 times better than the stock motor. 50! you wont be dissapointed by the speed and power.
http://www.hobbyking.com/hobbyking/stor ... r_6T_.html << stupid fast
any of these....
http://www.hobbyking.com/hobbyking/stor ... r_ESC.html
http://www.hobbyking.com/hobbyking/stor ... verse.html
http://www.hobbyking.com/hobbyking/stor ... 1_12_.html
2s (7.4v) lipo battery. get a few plugs and bits and peices too. and a charger.
http://www.hobbyking.com/hobbyking/stor ... oved_.html
also get a cheap 2.4Ghz radio system. way better than the old crystal ones.
My chassis is a Tamiya TB-01 which has been long since discontined, but i chose, because it has metal diffs and driveline. besides the spur gears, which keep melting or tearing the centers out, and the driveshafts that keep breaking, and the wheels that the center twists out of, and the axels that shear off, its one tough car. good times. (get a slower motor than the 9000...

)