I found a thread at yafray.org on studio lighting for a car. Since I am new to the topic I thought I should give it a try.
This is my first decent render. I will (hopefully) post back - after I have done some research and tutorials - with a better image.
Post production render:-
I am not sure if the gamma correction is right, so if you have a properly gamma corrected monitor please give feedback on how it looks.
The Yafray thread is here.
The car model is by Empire 3D and DMI and there are some useful links there too.
I used a coated glossy material for the car paint and a sunsky background with two meshlights; the colours are from www.bugatti.com.