back in europe VW, Audi,... are selling more TDis then regular gasoline powered cars.
If you are lookin to cut your gas costs half then this is the car to get. The higher hp TDis like above 150 are also great performace wise but at 90hp you cant expect to much.
Tdi are usually very strong in the lower rpms but once you spin higher they loose their power pretty fast.
If you get a diesel be sure to get a TDI, the turbo helps a lot.
-MeliK