Say what you will about the bizarre styling of the Lamborghini Veneno Roadster ($4.5 million) — it's a Lamborghini after all — but we challenge you to find a single negative thing to say about the 750 horsepower 6.5-liter V12 around back. This small-batch exotic (based on the slightly less expensive Veneno coupe) is limited to just nine cars, so chances are you won't run into too many out on the road. It's built to be lightweight and highly aerodynamic, with carbon fiber construction and a range of angular surfaces to control airflow. Its massive engine pushes it up to a staggering 220 miles per hour, while it reaches 62 in only 2.9 seconds. So, if you do see one it'll probably be moving too fast to give you a chance at criticizing its looks.