This week in Geneva while Ferrari joined the hybrid race with McLaren and Porsche, Lamborghini unveiled its latest prototype, the $3.9 million Veneno. The 750-horsepower car is a one-off model made to coincide with the company’s 50th anniversary. Its multi-million-dollar price tag makes it one of the most expensive cars ever made, putting it in the same echelon as the $2.4 million Bugatti Veyron and the $1 million McLaren F1.