Trunk mounted louvers for the flow through ventilation system were only found on 1971 models (as in many other GM models of 1971).

This expertise was later carried forward to many GM models and brands making GM the leader in cutting edge electronics for automotive use.

Contracts with General Motors soon followed, and Jo-Han produced GM models for the 1955 model year.

GM models appeared through the 1960s and 1970s, including the 1962 Oldsmobile compact Cutlass F-85.

Here are some of the most popular GM models customers have been driving out of US showrooms.

A sedan joined the wagon for 1992, with its own distinct sheet metal, although it shared parts with other full-size GM models.

After this year, all GM models would go through "downsizing" and shrink in length, width, weight and available engine size.

As personal luxury cars, these two GM models, especially the Toronado, were undoubtedly influenced by Cord.

Holden has offered a broad range of locally produced vehicles, supplemented by imported GM models.

By the early 1970s, this option was withdrawn from all GM models except Cadillac, on which GuideMatic was available through 1988.