After customizing a few high end sport utility vehicles the folks over at Onyx Concept have turned their tuning efforts over towards the finer things in life, like a high performance top of the line luxury coupe. Dubbed the Bentley Continental->ke401 Platinium GTO by the ONYX crew, this 200 MPH tuner car features a reworked aero package that consists of a revised front bumper with carbon fiber inserts, strips of LED driving lights and even more of the lightweight wavy stuff for the front splitter, side skirts and rear diffuser. Meanwhile the wide body flared and vented fenders frame a set of staggered 22 inch matte black mesh wheels exquisitely.

Not ones to be all show and no go, ONYX has tuned the standard 550 HP twin turbocharged W12 to generate a total of 640 HP. Although they aren't letting us in on exactly how the extra grunt is getting under the hood, we are confident that they will be able to exceed their target output without even breaking a sweat.

Press release after the jump.

Press release

Onyx are back and this time have moved away from the SUV market to concentrate on one of britains top luxury vehicles the Bentley continetal GT. The conversion consists of a revised front bumper with carbon fibre inserts, DRL's and a carbon fibre lower splitter. The sides have been widened with some clean cut arches and sideskirts. Lastly but certainly not least is the rear with a revised rear bumper and smashing looking rear carbon fibre difusser.

The boot lid has also been complimented with a carbon fibre touch in the form of a deck spoiler. Adding to the exterior conversion ONYX also have the additional extras that they offer to all there vehicles, this being bespoke bufallo hide leather interior and carbon fibre interior panelling. As always the Irish tuners have there own suspension lowering system, the engine power upgrade which they havent given an exact figure yet but have said that for the normal GT being 550BHP this will be over the 640BHP mark. Lastly they have given the car a set of there own 22" TPM matt black wheels which gives the vehicle a great stance.

Onyx have said that they have another 2 wheel designs that they will be launching shortly and this bentley conversion will be on the market from may this year.