Until the launch of the 530hp GT2, the Porsche 911 Turbo was the most powerful 911 on the market with 480hp but the goodfellas at Hamann have set out to put the Turbo model back in its place at the top of the scale with the Hamann Stallion boasting a total power output of 630hp.

The Hamann engineers set to work on the 3.6-liter Biturbo engine with a new stainless steel exhaust system with metal catalytic converters, sports air strainer and new motor managementm but the cream of the crop is the two larger variable nozzle turbochargers(VNC).

Hamann have thrown the book at the aerodynamic aspects of the vehicle for the ultimate performance in which the roofline has been been expensively lowered with the pillars and windows reduced by up to 8cm. Additional road grip is further enhanced with the road hugging body kit featuring the unmissable huge rear wing and 20inch three-part aluminium wheels.

The performance upgrades result in an impressive 0-60mph time of 3.3seconds knocking sixth tenths of a second off the time of the regular model, maximum speed now stands at 359km/h. It will be interesting what Hamann can do with this machine once Porsche's new double-clutch PDK system enters the Turbo.