View Here : Car That Are Cool
The car owners themselves make the car cool. If the person invested into his car to make it something he likes - be it insane amount of fake vents bought at local Canadian Tire and slapped onto his Honda Pilot or a Rocket Bunny bodykitted 86, the owners did that stuff because they make the car cool in their eyes.
Cars are great solar heat collectors. They have windows to let the sun's energy in, and they have enough mass to keep the heat. We all have heard the warnings that a car can get so hot, it can kill a dog or small child.