|There are several reasons why a person may buy one car instead of the other. In my case The MkV body style favors the GTI tremendously, I feel the new Jetta just looks way too big, and does not look nearly as sporty. On the other hand it comes down to how the car will be used. Im my case I always seem to have alot of passengers, making the 4 door jetta a much more practical car, its a pain in the butt to constantly have to get out of the car to move the seat forward to let the rear passengers out. If the car were to be used purely as an a to b car for one or two people the GTI makes sense. Or if its going to be used for spirited driving, and sport tuning the GTI weighs less and has a sportier look to it. So to sum it all up, to each his own.