Touted as the world's first 'Hyper-GT', the special McLaren is codenamed 'BP23', which stands for 'Bespoke Project 2' and three seats.
McLaren says BP23 will be the "most exquisitely crafted and luxurious road-going McLaren to date", though gives little details of what will power the car.
Above: McLaren F1
What we do know is that the three-seat Hyper-GT will feature a hybrid powertrain (similar to the P1 hypercar) and that production will be limited to 106 units - the same number of McLaren F1s produced.
This is all academic for most of us, however: those wanting to order one now are out of luck, as all have already been pre-sold.
BP23 will use the three-seat layout made famous by the F1, with the driver's seat in the middle.
Above: McLaren P1
The body will be made of shrink-wrapped carbon-fibre and has been designed for longer journeys, though will still pack the performance and driver engagement McLaren is known for.
First deliveries are forecast to commence in early 2019, with future owners working alongside MSO to create their own bespoke vehicles, right down to the colour, trim and other aspects to make their car unique.
Like the rest of the McLaren range, BP23 will feature dihedral-opening doors, though for the first time they will be powered, with apertures extending into the roof.
Above: McLaren F1 GTR and McLaren P1 GTR
The confirmation comes after reports out of the UK claimed the company was working on a modern interpretation of its iconic three-seater supercar.
Stay tuned to CarAdvice for more McLaren updates as they come to hand.