The Bugatti EB112 concept was a supercar with a sedan body

Ultra high-end luxury cars are common today, with the likes of Lotus, Porsche, and even Ferrari offering four-door crossovers. But three decades ago, the most expensive and technologically advanced cars in the world were all sports cars — your F40s, 959s and Diablos. Then along came Bugatti with the EB112 concept, a four-door sedan with supercar bones. 

Unveiled at the 1993 Geneva Motor Show, the EB112 caused quite a sensation. Partially it was due to the extremely…