Yorkshire, UK-based Range Rover tuner Overfinch has been transforming 4WD workhorses into high speed 'Toorak Tractors' for more than 35 years.

Its latest limited edition model, the GTS-X, is based on the already brutal, 5.0-litre supercharged V8 powered Range Rover Sport, boosting its outputs to 430kW/700Nm (up from 375kW/625Nm).

The significant increase comes courtesy of engine ECU tweaks and a custom exhaust, complete with a driver controlled valve release, for an even deeper rumble on demand.

The 2.5-tonne brute is now claimed to sprint from 0-100km/h in 5.0sec (close to a second quicker than the 'standard' car) and slam its distinctly un-aerodynamic body on to a maximum speed of 230km/h.

While a blinged-up beast like this won't be to everyone's taste, those hankering for some 'look at me' drama will love the GTS-X's dramatic body kit, including a rear spoiler, colour-coded side panels, vents and door handles, as well as a gloss black grille incorporating daytime running lights.

An electronic lowering module adjusts the suspension for improved ride quality and better stability under braking. Wheels are enlarged to 22 inch, forged alloy rims, and the brakes have been boosted to deal with the extra performance – now 380mm ventilated and cross-drilled rotors with huge, six-piston calipers at the front, and four pot units at the rear.

Inside there's a rich mix of leather trim and carbonfibre accents, matched with black instruments and GT steering wheel.

You can have the GTS-X in any colour you like as long as it's 'Copper Orange', and the UK price is the equivalent of $220 000, a substantial figure given the base car costs $159 900 in Australia, including local import duties and luxury sales tax.

According to Tom Graze from Overfinch Australasia, while the GTS-X won’t be officially available here, a Super Sport body kit and wheel package is available to replicate this car's pumped up personality.

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