The Marussia B-Series was a series of sports cars built by Russian automaker Marussia Motors (pronounced ma-rus-ya). The series consists of the B1 and the B2; the cars are very similar technically, but are very different in design. The two vehicles had the same engines, layout, features, suspension, brakes. Priced at over 4,000,000 ruble (from 120,000 € to 185,000 €), they were the first Russian sports cars ever built. It featured a full carbon fiber car with aluminium chassis. About 3500 units were built.