Bentley Blower
I won't bother to summarize Bricksonwheels excellent history of the famous Bentley Le Mans racer from 1930, but I will say that I couldn't believe it was LEGO from the thumbnail on Flickr. All that dark green! He built it like the real car, from the chassis up. He's got some nice custom stickers on there, and chrome where appropriate. There's even a rubber tarp over the back seat. Sir Henry Birkin must have had a blast!
Original author: El Barto