 To avoid overlap with the GM J platform, the GM L and N platforms did not undergo any significant size reductions, largely ending downsizing through the GM compact segment.For the subcompact segment, General Motors transitioned its model range to front-wheel drive in 1981 for the 1982 model year.Following the 1980 discontinuation of the H-platform, GM introduced the J-platform, with models for each division (except GMC).