Detroit - Not content with cars, Audi is also helping build a lunar rover.
The German automaker enlisted American astronaut Eugene Cernan, the last man on the moon, to show it off at the North American International Auto Show in Detroit.
Cernan jokes that the rover might not have an easy ride. He says the moon is "full of potholes" and its gravity, weaker than Earth's, often leaves rovers on three wheels. Cernan and Harrison Schmidt explored the lunar surface during the "Apollo 17" mission in 1972.
Space exploration
On a more serious note, Cernan says space exploration is key to the future of the U.S. and inspires young people.
Audi is assisting the Berlin-based engineering group "Part-Time Scientists" in the Google Lunar XPRIZE, a space travel competition.
The chairman of Audi AG says the automaker is committed to fixing diesel engines that cheat on emissions tests as quickly as possible.
Rupert Stadler says the scandal "is a unique opportunity for change and for innovation."