Another vote for the readily available $350 Sinar F with a bag bellows. At first I was set on getting a F2 but in real life the F1 or earlier F is just fine (and you can always use a third standard for the shade if you do pick up another F2 or P rear standard.)

I have seen and tried to pack my old Norma and now the F for minimal packing -- and it can be done -- but the truth is that I am an out of the car shooter.