So aside from its totally weird looks the Cormeum loses 90kg from lightweight roof, gullwing doors, front bumper/splitter, wider fenders front and rear, side skirts, rear diffuser and boot as well as a large GT style wing. All these parts are in carbon fiber. So it loses weight and some of its looks then.
It gains some horsepower, 563bhp becomes 651bhp. Somehow gaining nearly 100bhp from a normally aspirated engine without turbocharging seems easy to Mansory with the SLS AMG sporting a complete exhaust system and ECU tweaking. It also gains 20inch wheels running on 265/30/20 tires up front and 21 inches running 295/25/21 at the rear. It loses 20mm in ride height due to the customized suspension.
The interior gains lots of leather and stitching, carbon fiber trim for the dashboard, door cards and center console and aluminium pedals as well as a smaller airbag equipped steering wheel.
Actually all the specs stated above pales in comparison with what Mansory did to the look of the SLS AMG. I don't know whether to give an 'A' for effort or an 'F' for deconstructing the looks of the car.