My wife just bought a new Prius, so I thought I'd get a few images of it.
I particularly liked the dashboard/console of the Prius, so I focused on that. I wanted to communicate the modern look of the console, as well as a sense of depth and richness, even though the Prius is not a luxury car.
The lighting was simple, two speedlites sitting in the seats aimed at the roof of the car gave a soft non-directional lighting that worked really well with the curves of the steering wheel and console. I set the exposure so that no ambient light (it was an overcast day) would appear in the image, giving the image an even greater sense of depth in the dark shadows.
The only post-processing these images got was a bit of cloning in Photoshop to remove a few tiny specks of dust off the instruments. Even a brand new car has a bit of dust in it!