Buick GNX and Special are great American cars. Of course the Special is more famous because it has a lot wheelspin and gets a lot of points in the Drift Trails.
BUT these cars are not so good in tandems in my opinion, good cars to drift solo. You should try an easier car to begin with ! If you realy want one, I'd choose the GNX. IRL you can costumize this car and make it look epic !