What a beautiful car. Found on FB. One poster said the following, not sure if it is dead on accurate but I"ll take a chance and share it:
"This project started out with the bare shell of a Mercedes-Benz 300SL Roadster that was then transplanted onto the chassis of a 2002 Mercedes SLK. Key inspiration was taken from the iconic Porsche Speedster in creating the car, so much so that it actually features the windshield from a Speedster.
It has air suspension so it can be raised and lowered.
Powering the car is a supercharged AMG-sourced V6 engine."

I don't know if this is a "concept" car or actual production.The last retro Mercedes did was with our beloved Chrysler Crossfire. It too was matched to a 2002 SLK chassis. Great car, I have two, but the divorce of Chrysler and Mercedes ruined it's appeal and sales. Over 6 years, only about 80,000 were built.
The supercharged AMG V6 is amazing. Unfortunately, it does not come matched to a six speed manual shifter.
If this goes into production, the Porsche windscreen will likely have to go as it will not pass safety specs for rollover.