Sir Donald Campbell’s Jaguar XK150 comes for sale at Sworders this summer. The classic sportscar, bought by the British speed record breaker in 1958 as his regular runabout, is expected to bring over £150,000 on June 18th, part of a stand-alone auction of classic cars. The car’s full history is confirmed by a Jaguar Daimler Heritage Certificate. Campbell, the only man to hold both the land and water speed records, received his fixed head coupe...