PORSCHE will launch a new variant of the successful racing pedigree 911 GT3 RS this July, offering more power and greater performance.

Limited to 600 vehicles worldwide, the 911 GT3 RS 4.0 takes all the attributes that have made the GT3 a serial winner on the race track and moves the GT3 road car programme to a new, higher level.

The new model transmits thoroughbred motorsport technology through to its innermost core. The flat engine's crankshaft has been lifted unchanged from the 911 GT3 RSR racing car’s six cylinder engine and the forged pistons’ connecting rods are made of titanium.

The flat six 4.0-litre sports engine, the biggest 911 engine ever, is also the most powerful naturally aspirated engine with 125 hp/litre.

It achieves its maximum power of 500 hp at 8,250 revs per minute and delivers its maximum torque of 460 Nm at 5,750 rpm.

The 911 GT3 4.0, available exclusively with a six-speed manual sports transmission, sprints to 62 mph from a standing start in 3.9 seconds and, with its gearing designed for the racing circuit, takes it to the 124 mph mark in under 12 seconds.

The driving dynamics of the 911 GT3 RS 4.0 are the result of meticulously coordinated details. In order to best exploit the increased power, the chassis settings of the new car have been revised.

This includes the set-up of the Porsche Active Suspension Management .

It’s equipped as standard with light weight components such as bucket seats, bonnet and front wings made of carbon fibre, plastic rear windows and weight-optimised carpets.

The limited edition 911 is painted Carrara white as standard and trademark characteristics are the wide track, the low ride height, the large rear wing with adapted side plates, the typical central twin tailpipe and the aerodynamically optimised body.

The lateral front air deflection vanes, so-called ‘flics’, making their first appearance on a production Porsche, testify to the aerodynamic precision engineering.

The 911 GT3 RS 4.0 will be priced from £128,466.