HSV is finalising its export program by gifting Vauxhall its most powerful car to date.

The British brand has imported the HSV GTSR and rebadged it the Vauxhall VXR8 GTS-R.

Utilising the 6.2-litre supercharged V8 that produces a stonking 435kW and 740Nm, it is good enough to make it the brand's most powerful model.

Only 15 examples have been shipped to the UK and are priced from 74,500 pounds, or $129,000, which is $10,00 more than the local list price.

The VXR8 is effectively a carbon copy of the HSV GTSR with the same new front and rear bumpers, unique front guards with carbon fibre vent and diamond-shaped exhaust finishers fitted.

However, the identical upgrades don't stop at the visuals touches as the VXR8 GTS-R also picks up six-piston monoblock calipers, a torque-vectoring limited slip differential and 20-inch forged alloy wheels. The GTSR's 5kW power hike comes from the installation of a high-flow air filter, with a remapped engine management system to handle with the change of hardware.

2017 Vauxhall VXR8 GTS-R. Photo: Supplied

British fans of fast utes will be disappointed as Vauxhall won't offer the Maloo and is only importing the sedan variant.

With Holden's production ending in October, the VXR8 GTS-R will mark the end of HSV's UK export deal with Vauxhall, which first 'borrowed' the Holden-spec Monaro in 2004 and the HSV-based Monaro VXR in 2005 (including a supercharged version that Aussie's missed out on) before moving to HSV's E-Series range from 2007.

The VXR8 GTS-R will be on display at the 2017 Goodwood Festival of Speed where it will be partaking in the hillclimb twice daily, where ironically, it will debut alongside the Commodore-replacing Insignia Sports Tourer.

2017 Vauxhall VXR8 GTS-R. Photo: Supplied

2017 Vauxhall VXR8 GTS-R. Photo: Supplied