A short video of the superbly restored Red & White ECW bodied Bristol RELH6L, OAX9F, leaving Bath and heading towards Bristol. I was lucky enough to ride on this bus on a free service as part of the Brislington Rally on 11th August 2013.
No, just a Leyland 600 (NOT 680), as Red and White Specified the 600. The whistle is the fluid flywheel. Our 680 engined REs at Rossendale made the the same whistle.