Anti inertia ... 90 degree turns at over three thousamd mph is normally a killer. Yet ‘they’ do it.
but if they are manipulating gravity they would not feel it as a 90 degree sudden turn.
Yeah sort of splats the pilot and other occupants rather quickly. Another option would be drones that could handle the G’s. However if you could create an anti-gravity field one would think it would protect the occupants of the vehicle.