Last year at Geneva, McLaren revealed a track-only concept of its Senna supercar, dubbed the Senna GTR. Wearing a massive splitter and a bunch of other downforce-enabling pieces, it was one of the most extreme cars at the show. Now, the production version is here, and somehow, it looks even more wild than the concept.

None of the specs for the Senna GTR have changed in the transformation from concept to production car, and that's a good thing. That 4.0-liter twin-turbo V-8 makes 825 horsepower without any hybrid assistance (up from the road-going Senna's 789 horsepower). While the front splitter isn't as extreme as it was on the concept, the rear wing has become even more aggressive, with two outer up-rights that attach to either end of the bumper. There's also a diffuser wide enough to swallow a person, and a snorkel on top of the roof. The end result is an other-worldly 2205 pounds of peak downforce. That's nearly as much as the car's dry weight of 2619 pounds, which is insane if you think about it.

McLaren claims the Senna GTR is the quickest track McLaren outside of its Formula 1 cars. And yes, that includes the P1 GTR. Pricing? A cool $1.4 million. Not that it matters, though, because all 75 examples were sold shortly after the car was revealed last year.

"The McLaren Senna was designed from the outset to be an extreme track car, but the 2018 McLaren Senna GTR Concept suggested how much more further we could go and now, free from the constraints of road car legislation and motorsport competition rules, we have pushed the limits of what is technically possible to advance circuit driving capability to another level entirely," said McLaren CEO Mike Flewitt.

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