The production version of the track-only McLaren P1 GTR will debut at the Geneva motor show next month. The limited-edition, 986-hp monster will wear a new yellow-and-green livery at the show, inspired by McLaren F1 GTR chassis No. 06R. The paint job will be available to the first few buyers when the GTR Driver Program begins in Spain later this year.

McLaren says there are only minor changes from the design concept shown six months ago.

Compared to the road-going P1, the GTR is about 3 inches wider and 2 inches lower. It wears 19-inch wheels with slick Pirelli tires. The GTR is so focused on racing that the side windows have been replaced with polycarbonate, the glass roof and engine-bay cover have become carbon fiber and a new spoiler has been installed, about 4 inches higher than on the road car. The entire package is more than 100 pounds lighter than the standard P1.

The new aerodynamics lead to a stated 10 percent increase in downforce — at 150 mph, more than 1,000 pounds is claimed. That higher rear wing with drag reduction is adjustable from 32 to 0 degrees.

Like the P1, the GTR gets a 3.8-liter twin-turbocharged V8 making 789 hp, while an electric motor supplements it with 197 hp. McLaren says the powertrain has been revised for better track performance, with more motorsport-developed parts. Also, parts of the engine that were specific to highway use have been eliminated.

The McLaren Driver Program — as a buyer, you will become a part of it — has an initial test session in Silverstone, England, followed by track time at Circuit de Catalunya in Spain. Before any of that, though, buyers will go to the McLaren Tech Center to get a race-seat fitting and a performance assessment, and join in discussions on the design of each model with director Frank Stephenson. Drivers get time in the P1 GTR simulator as well.

Those are the bonuses of basically becoming a McLaren test driver. The drawbacks include the fact that you can’t park this car in your garage, unless it’s on a track, or take it to the store.

The P1 GTR will be joined by the new McLaren 675 LT on the stand on Tuesday, March 3 at the Geneva auto show.

About the Geneva auto show

The 2015 Geneva auto show runs from March 5-15 and will attract a diverse array of micros, sedans and supercars including the Aston Martin Vulcan, McLaren P1 GTR and Audi R8 V10. Check out Autoweek’s complete coverage at our Geneva motor show page.