It seems like spy photos of the next generation M5 are popping up everywhere these days. The twin turbo powered V8 is in the final stretch of drivetrain and suspension tuning in and around Germany and we expect it to debut sometime this fall in lightly disguised concept form. Then in early 2011 look for a final production M5 to show-up. But in the meantime you can see test mules attacking German roads below.

M5 Spy photos / Autoblog
M5 Spy photos / Worldcarfans