20-25 H.P.

Number produced: 3,827 Original Specification: 6 cylinders, overhead valves, 3.75"x4.5 (3669 c.c.),single plate clutch, 4 speeds, coil ignition with standby magneto, 4 wheel brakes with servo plus independent handbrake, suspension semi-elliptic front and rear, wheelbase 129, chassis weight 2650 lbs., tyres 6.00 x 19, centralised chassis lubrication

Chassis Series	Year	Comments
Series GAE	1934
Series GAF	1934
Series GAU	1932	Electric Petrol gauge
Series GAW	1933
Series GBA	1933
Series GBJ	1935
Series GBK	1936
Series GBT	1931-1932	Thermostatic shutters
Series GCJ	1935
Series GDP	1930
Series GDX	1933
Series GED	1934
Series GEH	1935
Series GEX	1933
Series GFE	1934
Series GFT	1931
Series GGA	1933
Series GGP	1930
Series GHA	1933
Series GHG	1935
Series GHW	1932
Series GKC	1934
Series GKT	1932	Synchromesh gearbox
Series GLB	1934
Series GLG	1935
Series GLJ	1935
Series GLR	1930	3" longer chassis
Series GLZ	1933
Series GMD	1934
Series GMU	1932
Series GNC	1934
Series GNS	1930-1931
Series GOH	1935
Series GOS	1931
Series GPG	1935
Series GPS	1931
Series GRC	1934
Series GRF	1935
Series GRW	1932-1933
Series GSF	1934-1935
Series GSR	1930
Series GSY	1933
Series GTK	1936-1937
Series GTR	1930
Series GTZ	1933
Series GUB	1934
Series GWE	1934
Series GWP	1930
Series GWX	1933
Series GXB	1933-1934
Series GXK	1935-1936
Series GXO	1929-1930	20HP with 20/25 engine
Series GYD	1934	Controllable dampers
Series GYH	1935
Series GYZ	1933
Series GZU	1932

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