'pends on how tight my pants are. I do practice draw and fire from the pocket, but not to the exclusion of other tactics. The gun is just one tool in the bag. Knifework and sprinting away are at least as important as the gun.
Being sinistral, my first reaction to the idea of drawing while in the driver's seat is to use the vehicle to eliminate the threat rather than the gun. My truck is the biggest bullet I have.
In situations where I think I might be vulnerable to someone "getting the drop" on me, my hand is in my pocket holding the revolver. Doesn't get any faster than that.
