With a strong resume of building some of the world’s fastest sedans, G-Power can now claim the title of building one of the fastest BMW M5′s To do so, the German tuner produced a kit that now delivers 820 HP and 583 lb-ft of torque from the twin-supercharged V10 5.0-liter engine, which sends its sprint time down to 4.4 seconds and its 124mph time to 9.5 seconds and onto a (a limited ) 225 mph top speed. All of this power is facilitated with a new set of 20-inch Silverstone RS wheels wrapped with Michelin Pilot Sport tires hooked-up to coilover springs with nine-way adjustability and slowed with a new braking system with six- and four-point calipers in the front and rear, respectively. The interior is equally jaw-dropping, with full leather outfitting the cabin joining carbon-fiber and Alcantara accents and a tricked-out multimedia system that includes iPads, an iMac, and Apple TV. There’s even a custom G-Power app designed to help you control all of its electric-operated components. This BMW M5 Hurricane RR Touring is available now for 242,016 EUR.