The Unimog Specialists | Atkinson Vos. Atkinson Vos is the world’s leading specialist in Unimogs, the iconic all-terrain vehicles manufactured by Mercedes-Benz. Established in 1978 in Bentham on the border between Lancashire and Yorkshire, Atkinson Vos has exported custom and specialist Unimogs to almost every country on Earth. The company has a reputation for outstanding service and unparalleled industry expertise for all things Unimog.