Rinspeed’s submarine car, the sQuba, made a splash on March 11, 2008

When you try to figure out how to change the clock in your car's dashboard today, just be glad you're not breathing through a limited air supply. On this date four years ago — March 11, 2008 — Swiss car manufacturer Rinspeed made quite the splash at the Geneva Motor Show with its innovative sQuba, a fully functional submersible concept car that cost $1.5 million to build.

Inspired by the submarine Lotus Esprit in the James Bond movie "The Spy Who Loved Me", the sQuba was a heavily modified Lotus Elise supposedly capable of propulsion above water or below. Sadly, demand for amphibious spy cars will likely have to wait until our coastal cities are underwater due to the effects of global warming. On the upshot, the sQuba is a zero-emissions vehicle.