Which of these two cars would you choose? The 2004 911 Carrera 4S Cab has 17K miles - $45K and the 2008 BMW M3 Couple has 16K miles - $52K. I have been working very hard at my job and despite this economy, I'm got a little bonus/raise this year and am considering handing down my boxster to my 23 yr old son and getting one of the other cars. I am probably going to put 20 or 30% down on one of these cars and finance the rest. If it were you, which one would you choose? Thanks in advance and all advice is much appreciated!