The true AMG in SLK is the SLK 32 made from 2001 - 2004
and the SLK 55 AMG made from 2004/5 through current year
https://en.wikipedia.org/wiki/Mercedes-Benz_SLK-Class
Mercedes sells packages like AMG sport package, etc to get extra money from customers
and then 'badges' the car because of that extra feature
Get your free datacard to see what you have
http://www.slkworld.com/vehicle-data-card/67706-free-how-request-datacard-free-us.html
now if you do not have the package then the previous owner made your car a poser
http://www.slkworld.com/mercedes-benz-posers/
and the SLK 55 AMG made from 2004/5 through current year
https://en.wikipedia.org/wiki/Mercedes-Benz_SLK-Class
Mercedes sells packages like AMG sport package, etc to get extra money from customers
and then 'badges' the car because of that extra feature
Get your free datacard to see what you have
http://www.slkworld.com/vehicle-data-card/67706-free-how-request-datacard-free-us.html
now if you do not have the package then the previous owner made your car a poser
http://www.slkworld.com/mercedes-benz-posers/