Giant Motorcycle that weights 5 tonnes!

When you've got a genuine Russian tank engine lying around, how can you resist repurposing it? And really, tanks are so lumbering and oafish, and with the price of gas nowadays... something a little more sleek and maneuverable is obviously called for.

This giant motorcycle took the team of welders and mechanics at the Harzer Bike Schmiede in Zilly, Germany, almost a year to craft. It is 17'4" long, and 7'6" tall, and weighs four-and-a-half tons. 1.8 tons of that is the tank engine itself. The Guinness Book of World Records has just confirmed it is the heaviest motorcycle ever (though interestingly, there is no mention of the size dimensions breaking any records.) They are still hoping to obtain a special license to actually drive it on the road.

Creator Tilo Nieber has dubbed the machine "the Led Zeppelin." Apparently in Germany, Zep counts as "heavy metal" music.