German luxury auto tuner Gemballa made a big impression at this year’s SEMA Show with the introduction of its Porsche 911 Turbo-Based GT Concept.

The widebody GT Concept features super-lightweight carbon bodywork and a number of special aerodynamic modifications. The vehicle boasts fenders that are 1.2 inches wider in the front and 2 inches wider in the back to fit the wheels intended for the car.

Special additions like all-new side skirts, front and rear bumpers, a carbon-fiber front spoiler lip, a rear diffuser, and a rear wing give the supercar its bespoke look. Gemballa also opted to improve the vehicle’s interior with Alcantara, exotic leather, and the brand’s embroidered logo on the headrests and floor mats.

Then, there’s power, and Gemballa’s typically over-the-top juice is in attendance: the tuning kit’s improved airflow and fuel delivery jacks up the power of the bi-turbocharged, 3.8-liter boxer engine to downright exiting levels. The GT Concept makes 828 hp and 702 lb-ft of torque; it can do a zero-to-62 mph leap in just 2.38 seconds, and tops out at just over 223 mph.