you know that audi makes both cars right? a vw is a cheap audi, or a audi is an expensive vw take your pick. the turbo diesel is the way to go, its the only way to get the hp numbers you will like. the audi is going to run circles around a jetta, and get you back home in time for a double lunch. check edmunds.com and see what information you can find on both cars, and check car complaints.com because I know some year audi a4 were big lemons, and that is not what you want. I looked up both year cars in carcomplaints.com and there were only a few complaints, so thats a good thing.