A while ago he started to build the friends of Lightning McQueen. Although the LEGO Company has an official product line around the movie Cars, I like these ones built from real bricks a lot more. Take a look at Flo:
These are not real photos, but they look good nevertheless. The realistic lighting and the POV-Ray treatment makes them quite professional in my opinion. David Hobbscapp is a Jaguar E-Type, built from bricks:
And this is Finn McMissile in action:
At last, one of the most recognized characters, the Sheriff:
It is worth taking a look at lego911's other photos as well, there are many good ones from Cars and unrelated too.