Wallpaper day

I wanted to start the month with a post, but I can't find anything that good to report on.
My lazy side took over and then an idea hit me... why not add some wallpapers of my choice every now and then? Perhaps make Saturday Wallpaper Day.

Today's theme is cars. Who doesn't love a sexy sports car and why not stare at it while you work?

Audi R8, one sexy piece of german engineering