This is a Porsche Carrera GT. The Model is from Sketchup Gallery but was heavily modified to get it printable. You can find more about this at www.ifeelbeta.de
It was printed in blue PLA with a layer height of 0.25.
After printing, the model was sanded and painted to get a nice look.
Print body and 4 wheels. Attach wheels with a piece of filament or some studding.
Sand and paint as you like.