 Sunbeam made a 3-axle bus chassis in December 1928 in an attempt to diversify.Known as the "Sunbeam Sikh" it had a Sunbeam 6-cylinder 7.98-litre engine developing 142 brake horse power in a chassis designed for a double-deck body carrying 60 to 70 passengers.A smaller 2-axle model "Pathan" appeared in August 1929 fitted with a 6.6-litre engine developing 110 bhp capable of carrying a 26-seater single deck or luxury coach body.