Luxury automobile companies are never quite satisfied with building high-end cars. They often stray into other types of branded merchandise that can have little to do with cars, such as the BMW Active line of clothing and accessories . Splitting the difference between branded merchandise and actual vehicles are these two limited-production bicycles from Mercedes and Aston Martin The bike above is a collaboration between Mercedes-AMG and German bicycle brand Rotwild, a builder that has been around since 1996, according to the company's website . The bicycle in question is the R.S2 "Beast of the Green Hell." It's inspired by the Mercedes-AMG GT R sports car that was promoted with the same nickname. It uses a carbon frame and wheels, as well as disc brakes. It's also painted in green and black to match the Green Hell Magno color available on the GT R . Only 50 of them will be built, and each will carry a pricetag of over €7,000, or nearly $8,300 at current exchange rates, including tax.