Two historic racing BMW CSL coupes get the Classic Retrofit CDI+ ignition upgrades for the BMW centenary celebrations at Monterey Historic Reunion weekend.

Admittedly we don't exactly have a Texas climate here in the UK but I would like to do a bit of continental touring in the 911 with my other half and there's the rub. There is just no way she is going in that car without A/C.  Nope, not a chance.   You can see her point.  The air cooled 911 is not exactly a comfortable continental cruiser.  It's...