Editor's note: As holder of the Guinness world record for fastest road-legal car, this Texas-built beauty is ready to zoom onto your screen and keep you revved up all day (revved up to get away from your screens and on the road, that is). Yeah, why is it that most of the things we choose as our desktop wallpapers (beaches, mountains, people who are a thousand times more attractive than our bosses) represent what we're NOT doing when we're stuck at our computers? While you ponder this important question, pick yourself out a sleek Hennessey Venom wallpaper and stick to the speed limit, okay? Wink, wink.