Pontiac Trans Sport
The Pontiac Trans Sport and its siblings, the Chevrolet Lumina APV, Oldsmobile Silhouette and Pontiac Montana were a set of minivans that débuted with radical styling in fall 1989 as 1990 models. There was also a Chevrolet Trans Sport sold in Europe until 2005 that was a version of the Chevy Venture that had some features of the Pontiac Trans Sport.
Background
The Trans Sport and its sibling models were produced by General Motors to compete with the Dodge Caravan and Plymouth Voyager. Because the larger Chevrolet Astro and the GMC Safari "mini-vans" were based on a body-on-frame, rear wheel drive truck platform, they appealed to a different segment of the market and did not put a significant dent in Chrysler's almost complete dominance of the minivan market in the late eighties. The GM minivans, while more successful than the Astro/Safari duo in terms of market share, were able to capture a large chunk of the market away from the Chrysler models.
Original concept
First shown to the public in 1986, the Pontiac Trans Sport concept car was extremely well received. It featured futuristic styling, individually removable bucket seats with built-in stereo speakers, a gull-wing rear passenger door and extensive use of glass including a glass-paneled roof as well as many other "dream car" features.
Based on the warm reception the concept vehicle received, the Pontiac Trans Sport was approved for production, but as is often the case, the styling and features showcased on the concept did not make the translation to the mass-produced edition. The gullwing door was deemed too expensive to produce and would probably have hit overhead garage doors in suburban garages. The glass roof was too heavy and too expensive, so the resultant production vehicle made-do with high-gloss black painted panels for the roof to suggest the glass canopy the concept sported.
Chevrolet and Oldsmobile were also given production vehicles based on the Trans Sport in order to cover the widest possible range of potential customers. It was intended that the Lumina APV would be the value-priced version, The Trans Sport would net the more sport- and style-oriented buyers, and the Oldsmobile Silhouette would be the minivan for the premium market.