With doors that are said to be eight inches thick and the weight of a cabin door on a Boeing 757 jetliner, the Presidential Limousine is able to withstand substantial armament.
Adam Wells, Virgin Galactic's head of design, said the cabin's interior was being kept as minimal as possible to reduce weight and maximize space for floating.
The ultimate expression of this obsession with weight sits in Goetz's shop: a 30-meter cabin cruiser made out of some of the same materials as Route 66.
Placing the batteries in the floor of the vehicle provides optimum weight distribution to help enhance handling and allows for five-passenger seating by not intruding into the cabin space.