Patent drawings have surfaced and likely depict a bespoke supercar based on the McLaren Senna.
The patent drawings are from a Japanese government website and were posted to the Taycan EV Forum (via Carscoops) by a member earlier this week. They show what's clearly a McLaren Senna with modified body work.
It's possible we're looking at a bespoke supercar from McLaren Special Operations. In 2018, a spokesman for McLaren told Motor Authority the MSO personalization department was working on a bespoke project code-named BC03. At the time, the car was rumored to have been inspired by McLaren's Ultimate Vision GT concept unveiled the previous year.
![2019 McLaren Senna, Portugal Media Drive, June 2018 2019 McLaren Senna, Portugal Media Drive, June 2018](https://images.hgmsites.net/lrg/mclaren_100656129_l.jpg)
2019 McLaren Senna, Portugal Media Drive, June 2018
BC stands for “Bespoke Commission,” and the number points to this being the third of its kind. The first was the X-1 supercar unveiled in 2012 while the second was the MSO R unveiled in 2017. BC03's actual name could be Sabre, which we learned in June has been trademarked by McLaren.
Looking at the patent drawings, the mystery McLaren appears to be a model fitting somewhere between the track-focused Senna and track-only Senna GTR. There are unique elements though, like the central fin at the rear which connects up with a huge rear wing.
McLaren has already doled out a handful of special Sennas, so another one doesn't come as much of a surprise. Others include the Senna XP, Senna LM and Senna GTR LM.