[Shaun @ Tru6]

It's been cold here in MA but with the car filled with water from a week of downpours, I've been trying to get residual water out by driving with the top off and just found a heating trick.

If the passenger window is all the way up and the driver's window is about 2 inches down from all the way up, airflow in the car pushes all the heat to the driver and there's little internal turbulence.

Conversely, if driver window is up and pass a little down, you get a strong, turbulent, cold draft.