The minivan market is one of the industry's most varied, and a big part of that variety comes from the front-drive minivans from General Motors. Mechanically identical as well as visually similar, the Pontiac Trans Sport, Oldsmobile Silhouette and Chevrolet Lumina look like nothing else on the road. These vehicles are notorious for the very pronounced rake of their noses and windshields. Introduced in 1990, these minivans were the subjects of early criticism due to their Dustbuster look and mediocre performance. But with some restyling and a new powertrain, those sore points are things of the past, and the GM threesome has developed a strong loyalty among their owners. The Lumina is available as the base Lumina or upscale Lumina LS, you can get the Silhouette in Series I or Series II trim levels, and the Trans Sport is available only in the uplevel SE trim, which we evaluated.