BRP-Powertrain GmbH & Co KG (until 2008 BRP-Rotax GmbH & Co. KG), commonly known simply as Rotax, is an Austrian engine manufacturer. It develops and produces four-stroke and advanced two-stroke engines for Bombardier Recreational Products (BRP) products (Ski-Doo and Lynx snowmobiles, Sea-Doo watercraft and sport boats, Can-Am quads and roadsters) as well as for motorcycles, scooters, karts, ultra light and light aircraft.