Sport car companies enjoy the luxury of pushing design to the extreme, putting issues such as passenger comfort and cargo area aside. At the Los Angeles Auto Show we found a selection of new car designs that are as beautiful as they are impractical. Porsche showed up with a convertible that makes it more difficult to lower the top than in its other models. Lotus' newest car may be more accessible than its previous models, but you will still need the moves of a break-dancer to get inside. And the second generation of the Spyker C8 Aileron takes car design into the world of art.