It appears that McLaren hosted a customer event at the Formula One track, Spa Francorchamps. While it's clear there were plenty of MP4-12C's, 650S' and even a P1 or two, the real stars of the show were the company's latest wares.

McLaren's Chief Test Driver, Chris Goodwin, took to the track in a prototype 675LT as well as the all-new P1 GTR.

While it's been great to see these vehicles in the flesh at the 2015 New York Auto Show, it's WAY better to hear them get fired up and working their way around a circuit.

Check out how that P1 GTR works its way around the track. Staggering!

In this video you can see two McLaren 675LT being tested at the F1 track of Spa-Francorchamps. You can see and hear multiple accelerations, some powerslides, great downshifts and the roaring V8 sound in the pitlane. Enjoy the video and don't forget to comment and subscribe!

The 675LT with camo wrap is Prototype Vehicle MV420R, the black 675LT is Prototype Vehicle VP437. Behind the wheel was Mclaren's chief test driver Chris Goodwin. He tested the upgraded twin-turbo V8 3.8-liter engine with 675 HP and 700 Nm of torque. That's 25 HP and 22 Nm more than the 650S. LT refers to the 1997 McLaren F1 GTR Long Tail, which competed in the 24 Hours of Le Mans endurance races of the late-90s.

This video shows you a McLaren P1 GTR being tested at Circuit de Spa-Francorchamps in Belgium. It was driven by Chris Goodwin, McLaren's test driver. Enjoy the video and don't forget to comment and subscribe!

Thanks for watching,

Engine: 90º V8 / 3799 cc / 231.8 cu in / BiTurbo
Power: 789 bhp / 589 KW
Electric power: 197 bhp / 147 KW
Combined power: 986 bhp / 736 KW
Driver: Chris Goodwin (ENG)
Price new: £1,980,000

VIDEO: TWO For The Price Of One — McLaren's 675LT And P1 GTR ROCK Around Spa!

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