Amphibious bus on the river Clyde

An amphibious bus on the banks of the river Clyde near Glasgow, Scotland Photograph: Andy Buchanan/AFP/Getty Images Photograph: Andy Buchanan/guardian.co.uk An amphibious bus during a press preview on the river Clyde in Glasgow. The vehicle operates like a standard coach on roads, but in water it is driven by twin water jets at a speed of about 9mph Photograph: Danny Lawson/PA Photograph: Danny Lawson/guardian.co.uk An amphibious bus in the water during a press preview on the Clyde in Glasgow, with a slipway it needs to negotiate in the background Photograph: Danny Lawson/PA Photograph: Danny Lawson/guardian.co.uk An amphibious bus drivces out of the River Clyde Photograph: Danny Lawson/PA Photograph: Danny Lawson/guardian.co.uk A Stagecoach amphibious bus encounters problems during a demonstration on the Clyde in Glasgow Photograph: Jeff J Mitchell/Getty Images Photograph: Jeff J Mitchell/guardian.co.uk A mechanic inspects the underside of an amphibious bus after it developed a fault with its suspension during trials on the Clyde Photograph: Andy Buchanan/AFP/Getty Images Photograph: Andy Buchanan/guardian.co.uk Media film and photograph an amphibious bus, which experienced problems during a test by Stagecoach bus company on the Clyde Photograph: Jeff J Mitchell/Getty Images Photograph: Jeff J Mitchell/guardian.co.uk