
Gas Tank - A special foam is added to the gas and mixed into the tank. What the foam does is that it prevents the gasoline from exploding even if the tank suffers a direct hit in an attack.
Doors - They are armour plated and eight inches thick. They are also the same weight as the cabin door on a Boeing 757 jetliner.
Driver Side Window - Can resist armour piercing bullets. The driver's window is the only window in the car that can be opened. It will only roll down about three inches though so that the driver can communicate with Secret Service Agents running along side the vehicle and or to do things like pay tolls.
Body Work - The skin of the car is made out of double thick steel and Titanium.
Tires - The wheels are made out of Kevlar. They are shred and puncture resistant.
Boot (the rear of the car) - It holds an oxygen supply and also a fire fighting system.
Accessories On Board - Night vision cameras, pump action rifles, and tear gas cannons. There is also a generous supply of the President's blood on board maintained in bottles in case the President suffers injury in an attack and requires blood.