It's fun and easy to pretend play with someone else's money and there is nothing better than imaging how you would run a multi-billion dollar auto company. Fantasy sports are a close second though. It's particularly fun to greenlight awesome concepts that brands have deserted over the years. Usually this involves ignoring technological feasibility or market demands but there are concepts that seem to be guaranteed slam dunks if they were produced. Here are a few concepts from the past with awesome design and strong business cases that would need minimal updates to succeed today.
Volkswagen Microbus/Bulli
The 2001 Volkswagen Microbus Concept is still one of the best concepts to never see the light of day. It's the one that got away. Certainly the minivan market is not strong enough today for Volkswagen to make a case for the Microbus anymore and the Routan experiment doesn't help one bit.