I bought my first BMW, a 2006 Z4 3.0si, a couple months ago. I never knew that driving a car could be almost as much fun as riding a motorcycle until I got my Z4. Also, I have noticed other Z3 and Z4 owners waving and/or honking (friendly, not hostile) when I drive by them. I've had similar experiences with other bikers while riding my motorcycle but I never realized that any camaraderie existed between automobile owners. I appreciate that unexpected aspect of owning a Z4. And thanks for the welcome to this forum!