I won't go in depth telling you all the specifications of the new diesel engine that is going into various VW's with the TDI moniker starting early in 2008, if you are interested in knowing more about them, click here. What I will mention is that these vehicles will mark the first Jetta's sold with diesel engines in all 50 states since '99. And it will be available in a wagon body style! Woo hoo! Could these vehicles be exactly what the middle-class green market is looking for? Could be, and I am looking forward to seeing how they drive. Stay tuned!