<P> In addition to automobiles and bicycles, some other products that often have model years include: </P> <Ul> <Li> Airplanes </Li> <Li> All - terrain vehicles </Li> <Li> Golf carts </Li> <Li> Heavy equipment </Li> <Li> Mobile homes </Li> <Li> Motorcycles </Li> <Li> Recreational vehicles </Li> <Li> Semi-trailer trucks </Li> <Li> Snowmobiles </Li> <Li> Tractors </Li> <Li> Trailers </Li> <Li> Watercraft </Li> </Ul> <Li> All - terrain vehicles </Li>

When does the new car model year begin