VIN Numbers
The Mainstream Cooper was produced between September 1990 (chassis number 011651) and October 1991 (chassis number 031549). Approximately 19,899 units were made.

Decoding the VIN number:
All cars carry a Vehicle Identification Number (VIN) made up of an 11-character prefix and a 6-digit number.
Letters
Example
Description
1-3
SAX
World make identifier for UK and Rover Group
4-5
XN
Model code for Mini 1300 range
6
N
Class - always N on a Mini Cooper
7
A
Body type - two door saloon
8
M
Engine type - Carb (Y on fuel injection models)
9
B or M
B - right hand drive Carb model with 3.105:1 final drive. M - left hand drive Carb model with 3.105:1 final drive. (Right and left hand drive injection models with 3.21:1 final drive have C and N)
10
B
Indicates model change (RSP cars had A)
11
D
Assembly plant (Longbridge)