The 2012 International Consumer Electronics Show (CES) was full of gadgets, tablets and TVs, but the Las Vegas convention also showcased some of the most cutting edge cars on hand, too. From Ford to Cadillac to Lamborghini, cars hit the showroom floor to demonstrate speaker, sound and smart systems in cars, some of which integrated with Bluetooth and iOS devices like iPhone and iPad. Check out the photo gallery, and tell us in the comments section below which car was your favorite.