Tucker Torpedo 48
Preston Tucker had the right idea for the future car, a rear mounted helicopter engined sports saloon. The three headlights gave it its unique look that some of us recognize today. But due to financial issues with the Tucker company, only a few have ever been made. This particular example only has 0.5 miles on the odometer and is the last one built.
Spyker D12 Peking-to-Paris
With the acceleration equivalent to a Ford Mustang GT, and a luxurious interior like a Rolls Royce, this Spyker is one of my favorites. The car is however available, but in video game form on Test Drive Unlimited 2. The plans for this SUV were scrapped after the company Spyker declared bankrupt in 2006. Only a handful were built.
Though just a concept car, the Asterion seemed like the near future for the Italian supercar builder, Lamborghini. It had a 5.2 litre V10 engine propelling the car from 0-60 mph in 3 seconds flat. The idea soon turned over to the Urus, as Lamborghini decided to make that their SUV. The concept ones are the only remaining.
Nissan R390 GT1
This little known about Nissan entered in the LeMans in the late 1990's, with only 8 being built. However, there was never an issue with the company's 220 mph LeMans car, except the fact that it would be to expensive to produce. Its 3.5 litre twin turbo V8 made over 500 horsepower, making the car go from 0-60 in 3.9 seconds.
Ford Shelby GR-1
A modernized version of the Shelby Daytona Coupe, the Shelby GR-1 was powered by a 6.4 litre V10 engine, giving the car 605 hp. Though the GT was already in production, the project was let down because Ford was worried that the styling would ruin the reputation of the GT.