The 4x4 sapph is deffo the best driver of all the cosworths imo,not as much fun as the 2wd but then not everyone is into going sideways anyway..
They don`t feel particularly slower than the 2wd car either,and are very stable...
The drivetrain is a problem if you want to go big power,but is fine upto about 330bhp which is most peoples favourite conversion anyways...
You definitely wouldnt be dissapointed i reckon....