Just caught this thread by chance. I work part-time at a BMW/Porsche dealership doing the same thing that you just hired for. This job is a lot of fun and you will get to drive a ton of awesome cars. I would like to see how your experience goes to see if it is any different from mine. I worked there full time last summer and by the end I really wasn't washing cars at all but helping out with other random stuff that meant more time driving. Sometimes I had to go to partner dealerships about an hour away for random part runs but they would let me take a X5 if it was for a windshield or once a Boxter for a $5 switch. Get ready for daily experiences that will make all of your friends jealous.