On the other hand, we're also sure that she has no idea that what she's driving is actually a TDI. Yeah, making the difference between diesel and gasoline is pretty hard when you have so much money but still... Going the gasoline way is the right way to do it, not only because it really makes you feel like you're driving a car and not a tractor but also because this is what Americans do. You know, Americans... diesels... something do not match here.
On the other hand, Jessica is one of the few American celebrities that drive an Audi, as most of them picked more environmentally-friendly rides like Lexus hybrids, more masculine approaches like Range Rovers or totally aggressive cars such as G Wagons.