Built electric from the ground up, Tesla Model X is designed to be the safest car on the road. Tesla's own crash tests indicate that Model X will receive a 5 star safety rating in all categories, the first SUV to ever do so. Not needing a big gasoline engine under the hood, Model X has a large crumple zone to absorb the energy of a high-speed impact. The battery's location on the floor gives Model X an extremely low center of gravity, reducing the risk of rollover common in most SUVs. Aluminum pillars reinforced with steel rails protect occupants and the battery while improving roof stiffness.