Last modified on 13 June 2014, at 02:19  Vehicle Identification
Numbers (VIN codes)/GM/VIN Codes  General Motors uses the
following VIN formats and codes.  American GMEdit  American VIN
formatEdit  GM has traditionally encoded the platform as the
fourth character of the VIN. Other content includes an engine
code and manufacturing plant. GM's VIN format is as follows:  on
Sample Description 1 1 World Manufacturer Identifier 2 G 3 6 4 D
Platform 5 M Platform Series Code 6 5 Body style 7 7 Restraint
type 8 N Engine type 9 0 Check digit 10 3 Model year 11 0
Factory ID 12 1 Sequential number 13 2 14 3 15 7 16 6 17 2
Platform codesEdit  GM used a lettered system of automobile
platform codes for three decades. These letters were used as the
fourth position of the VIN. Though today's GM platforms use
Greek characters, they are still encoded with Latin characters
in the fourth position. Position five encodes the specific model
and trim level of the vehicle.  List of GM platforms Platform GM
C platform C W Buick Park