Theyaregenerallypresentinminivansthedoorshaveatrackattachedtoitonwhichthedoor
slides giving the minivan or an automotive a largeopening.
Disappearing,
Ifinditpersonallyveryamusingasthedoorslidesunderthevehiclemakingthecompartment
of the car exposed to an individual. These are mainlypresent in the concept cars.