McLaren has announced plans to build a new two-seater “open cockpit” roadster slotting into its range-topping Ultimate series.

McLaren CEO Mike Flewitt will make the official announcement at a customer briefing at the Pebble Beach Concours, where the company will be “taking expressions of interest from current customers”.

Set to hit the market late in 2020, the new Ultimate Series model will likely be priced between the Senna and Speedtail.

The as-yet-unnamed model will be “strictly limited” to 399 examples and offer what the Woking-based firm describes as “the purest distillation of road-focused driving pleasure and an unrivalled sense of driver connection with the surrounding environment”.

McLaren promises the new model will feature “classical roadster proportions, elegant sweeping lines and low-profile dihedral doors”.

Interestingly, the British company says the use of its trademark carbon-fibre construction will help make the new model “the lightest car ever produced by McLaren”. Expect it to be powered by a version of the twin-turbocharged V8 engine currently used by the Senna.

“At McLaren Automotive, we are consistently pushing the boundaries to deliver the purest and most engaging driving experience whether for the road or track. Our two current Ultimate series cars, the Senna and Speedtail, offer unique and distinct driving experiences. Now this new addition to the Ultimate series, an open-cockpit roadster, will take road-focused driving pleasure to new levels,” said Flewitt.