Information Supplied by Neil Cairns

Note that there were blocks of unused numbers between the models, so 125 M.G.s and 16 Rileys were never made! The chassis number is on a plate on the battery side inner wing, also stamped there, and on later cars a plate screwed to the nearside rear dash, up under the bonnet hinge. Body number (or commision number,) is on the radiator panel, and on some cars up under the offside inner wing. Only early cars had the number actually stamped into the offside wing by the battery. Good security would lead you to stamp it into the metal yourself........ as the plate is only held on by two little screws.( RHS2 was the Riley 1.5 Mk2.)

M.G. Mk3

• Feb 1959 GHS1 101 first Mk3 (Introduced November 1958.)
• Jan 1960 8290
• May 1960 12000
• Jan 1961 15125
• Oct 1961 16676 last Mk3

M.G. Mk4

• Oct 1961 GHS2 16801 first Mk4
• Jan 1962 17615
• Jan 1963 20915
• Jan 1964 23370
• Jan 1965 25983
• Jan 1966 28650
• Jan 1967 30336
• April 1968 31120 last Mk4

Riley 4/68

• April 1959 RHS1 101 first 4/68 (Introduced February 1959.)
• Jan 1960 4850
• May 1960 6550
• Jan 1961 10050
• Oct 1961 11084 last 4/68

Riley 4/72

• Oct 1961 RHS3 11101 first 4/72
• Jan 1962 12250
• Jan 1963 15050
• Jan 1964 17300
• Jan 1965 19500
• Jan 1966 21800
• Jan 1967 23300
• Jan 1968 24050
• Jan 1969 24800
• Oct 1969 25291 last 4/72. Last Riley!

Chassis numbering system:

• First letter indicates the make, R= Riley, G=M.G.
• Second letter means engine fitted, H= 1400 to 1999cc
• Third letter means style, S= Four door body,
• Fourth letter is the series, such as 1,2,3, etc.
• Numbers following them is the chassis number.

Many people read the 'S' as a '5', and the dash '/' as a '1' on their register forms. On late cars the chassis number is followed by the letter 'M', this just indicates the car was made at the 'MORRIS' factory at Cowley, not the 'Austin' factory at Longbridge.