reliability. I know of a CCA member that traded a M3 for a Boxster (99 MY) and hated it. He had a lot of problems with the engine so he just recently traded for a 2001 330i SP. He loves it and compares it to has old E36 M3 4dr. Since you work for Cutter I guess that's not really a concern though. I know your wife has the X5 but, what if she's out (in the X5)and you have the kids and you want to go somewhere. It would be hard to do that in the Boxster. It's a hell of a good looking car but, after my Z3 2.3 I just think Roadsters are impractical. Good Luck on the decision.