what is your expectation? 
 
From my opinion, 103GT is a good car.  Its responsive to setp up change.  If u get the correct setting, the car will run well and bring u a lot of fun.  Its very great if all body are playing 103GT and make a one-make race. 
 
But If your friends are playing with 4WD touring, I recommend u to buy 4WD touring (eg TA05, many parts could be found in KWS).  Otherwise, u need to play in traction ground like PYC and TC.  IF not, 103GT cannot run against those 4WD. 
 
ANyway, 103GT is a good car.  If u buy 103GT, the following options are necessary: 
 
2mm Offset kit for rear 
2mm offset kit for front 
Tamiya damper ---Dont buy others..They waste your money 
Sorex 36R tire, Tamiya 0mm offset wheels, RI - Orange insert |