The Cadillac Ciel is an ultra clean new concept car that shouts American-made luxury. The handcrafted vehicle whose name translates to "Sky" in French draws its inspiration from the California coast. It's aesthetically classy framework was designed by the L.A. based company Advanced Design studio. The promising convertible concept is not yet in the mass production stage but it's twin-turbo 3.6 liter V6 engine with 425 bhp make it a mean road machine both inside and out. The Ciel also uses a hybrid system with lithium-ion batteries that the electric motor can tap into. Check out the video below for interviews with the cars designers and more.