i was looking on tower hobby at the tt-01's and my quesion is. why are they so cheap?

links to there 2 cars i found

Tamiya RC Subaru Impreza WRC '04 TT-01 Kit
http://www2.towerhobbies.com/cgi-bin...&I=LXHWN0&P=ML

Tamiya XB Enzo Ferrari RTR TT-01
http://www2.towerhobbies.com/cgi-bin...&I=LXJSW1&P=ML

Tamiya BMW 320si WTCC '06 Team Germany TT-01 Kit
http://www2.towerhobbies.com/cgi-bin...&I=LXRLB3&P=ML

I want to get into the drifting world. if this the best way to go or is there a better solution