The Cadillac Aera is a ridiculously lightweight – it weighs 1,000 lbs – 2+2 coupe that takes the boundaries of automotive design and pushes it to levels that are reserved for sci-fi movies. Its 10,000 psi composite air storage tank has ample capacity for a 1000 mile range. Flexible, pressurized air cells in the exterior skin, similar to material developed for the NASA Mars Rover airbags, enhance passive safety and interior comfort. The flexible polymer skin optimizes aerodynamics and functions as an ultra-lightweight alternative to conventional body panels and glass. Additional technologies include an All-In-One (AIO) wheel system, combining rotary actuator propulsion, steering and suspension functions.