A system for adjusting a size of an access into a vehicle is provided. The system may include a pillar, which may be substantially vertical, and a track allowing the pillar to be moved. A latch may be attached to the pillar securing the pillar along the track. The pillar may be secured at one or multiple locations along the track. Multiple rolling mechanisms may be part of the pillar. These mechanisms may allow the pillar to glide back and forth enlarging or reducing the entrance into the vehicle from the front or rear entrances. The track may be interior to a front and rear door of the vehicle.