not sure you're gonna find an animation that you can use via playmove/switchmove that does something like that..
the only reference I know to those animations are referred to in a vehicle's config.cpp in the two lines that resemble these:
getInAction="ManActGetOutCar";
getOutAction="ManActGetOutCar";
getInAction="ManActGetInTank";
getOutAction="ManActGetOutTank";