On the Boxster Board Robert from Agoura Hills (sp?) raves about his GT3 seat in his Boxster with a special "tall man" floor mount from Brey-Krause. If you're not concerned with anyone else driving your car, and like the GT3 bucket seat (very grippy but no seatback recline or tilt), this should give you plenty of head room. Not especially cheap though as seat and bracket run about $1700 I believe. But hey, what's $1700 compared to the price of the car and the enjoyment of being comfortable driving it