10. 2012 Nissan 370Z
Average paid: $31,959
This Nissan (NSANY) is the most costly car on the list, but it's also one of the brawniest. The 3.7-liter V6 puts out 332 horsepower and can accelerate from zero to 60 miles per hour in 4.5 seconds. The folks at TrueCar think it looks like a Porsche from the outside, but add-ons such as aluminum pedals and a Bose audio system make it feel like a luxury vehicle on the inside as well.