G-Power Builds Another "Most Powerful BMW"

AUTENZELL, Germany — The G-Power M3 Tornado RS is the latest car to claim the mantle of "most powerful BMW M3 in the world," according to the German tuner.

Priced from $47,600, G-Power's new upgrade for the M3, the SK III "Sporty Drive" supercharger system, kicks output up to 709 horsepower and torque to 516 pound-feet. The SK III is an evolution of the company's earlier SK II system.

The M3 Tornado RS is blindingly fast. G-Power claims 0-60 acceleration takes less than 3.7 seconds, with top speed exceeding 205 mph.

The SK III kit represents a thorough overhaul of the M3 V8, with a modified crankshaft increasing displacement from 4.0 to 4.6 liters. In addition, G-Power remaps the ECU and installs Mahle forged pistons, new conrods, a carbon-fiber airbox, a custom-made cooling system and an ASA T1-723 centrifugal supercharger. A new free-flowing titanium exhaust system features metallic catalytic converters.

G-Power fits the M3 Tornado RS with its Clubsport coil-over suspension; ceramic brakes with 6-piston calipers in front and 4-pots in the rear, and its own Silverstone 20-inch forged alloy rims with Michelin Super Sport rubber — 255/30ZR20 in front and 295/25ZR20 in the rear.

The M3 Tornado RS also sports a full G-Power aero body kit rendered in carbon fiber, including a front spoiler with optional brake cooling ducts, a venture-type hood to reduce heat in the engine compartment, and a new deck-lid with integral three-piece spoiler.

Inside Line says: Not just the "most powerful," but quite possibly the priciest M3 on the planet.