This does go against standing precedent, you can be forced by law to give up a key to a safe, but not a combination. This judge is trying to overturn 150 years of established case law.
I went for the 333hp TFSI in the S-Line, I love it!. I drove both and I liked the acceleration the gas had over the diesel's torque. That diesel sure is sweet though! It accelerates smoother than the gas engine, especially around town, and just idles at 70mph.
In many states that only applies if the dealer delivers the car to you. If they deliver it to your home or business, as opposed to driving it off their lot, you usually have ~3 days to renege on it.
Buying that car at those rates your credit is far above what most people's is, and if a bank is giving you those kind of rates I'd expect you have more deposits there than just a free checking account. Nice ride though, I just picked up a 2012 Q7 and paid the "peasant's" rate of 2.9%.