in Dunstable under new ownership in 1947 when Leslie Johnson bought the company, together with ERA E-Type GP2, the second of two built in 1939, which had been raced by Reg Parnell and Leslie Brooke. Refitted with a Zoller supercharger and driven by Johnson, GP2 tied with Parnell's Maserati 4CLT for fastest lap in the 1948 British Empire Trophy and finished fifth. In the same race GP1, upgraded by the works with Murray Jamieson-designed Roots-type supercharging and driven by Reg Parnell's mechanic Wilkie Wilkinson (who had supervised modification of the E-Types), retired with a broken connecting rod. After posting the fastest time in the opening practice session for the 1948 British Grand Prix, Johnson retired GP2 from third place on the first lap when a driveshaft universal joint failed. In practice for the Coupe du Salon at Montlhéry he broke the lap record but retired GP2 from the race with a fractured fuel tank after three laps. In 1949 at Goodwood GP2 broke a back axle universal joint in practice but Johnson took the car to fifth in the Richmond Trophy and third in the Chichester Cup. In the first day's practice for the Jersey International Road Race, he was second-fastest to Luigi Villoresi's record-breaking lap in a Maserati but on the second day the engine bearings failed and the car did not race. At Silverstone's 1950 Grand Prix d'Europe the supercharger disintegrated after two laps. Meanwhile, GP1, driven by Fred Ashmore, failed to finish the 1948 Jersey International Road Race owing to fuel starvation and defective steering. In the 1949 BRDC/Daily Express International Trophy, Peter Walker took GP1 to within 1.2 seconds of Giuseppe Farina's Maserati in practice and finished fifth in the race, despite gearbox and steering problems, a leaking radiator, and the exhaust burning the driver's foot. Walker was fastest in practice for Ireland's Wakefield Trophy road race, but a snatching brake forced him down the escape road at the first corner. Here GP1's race ended when it was hit by an Alta that had already collided with Salvadori's Maserati 4CL. Finally in 1950, GP1 was gutted by fire in a crash at the British Empire Trophy race on the Isle of Man, caused by driveshaft failure when the car was at high speed with Walker at the wheel. G-Type The 2-litre G-Type raced in the 1952 World Championship, the first season to be run under Formula