If you think 1,948 units of the new one is rare, wait until you see the 911 Speedster model with just two examples in existence.

Porsche has done a very poor job of keeping the new 911 Speedster a secret after countless spy photos and a leak about the company registering VINs for the model. However, an announcement at the Paris Motor Show finally confirms that a production model of the attractive concept is on the way.

Porsche isn't telling us much about the new, road-going 911 Speedster yet, but looking back at the past can provide a glimpse of the future. Click through the slides above to get a better idea of why a Porsche speedster is so special.