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McLaren 675LT supercar to debut at 2015 Geneva Motor Show

McLaren is trawling its history for a second 2015 Geneva Motor Show debut.

Alongside the production-ready P1 GTR, McLaren will unveil the 675LT, referencing the modern-classic F1 GTR “Longtail” racer.

The original Longtail was a stretched version of the F1 GTR introduced for the 1997 racing season. Lengthening the car was intended to increase downforce as McLaren sought ways to keep the F1 GTR competitive.

The new 675LT won’t be a full-on racecar, but it should still be one of the most beastly road cars ever.

Based on the 650S, it will feature numerous aerodynamic upgrades and a bump in power. The “675” refers to the output of the 3.8-liter twin-turbocharged V8 in PS. That equates to a Satanic 666 horsepower.

Related: McLaren P1 GTR design concept is too hot for the street

Available only as a coupe, the 675LT will be the most powerful model in what McLaren is now calling the Super Series.

Encompassing the 675LT, 650S, and Asia-only 625C, the model range was renamed to distinguish it from the upcoming “entry-level” Sports Series.

Formerly known as the P13, that model will use many of the same components from the Super Series and P1, but will be smaller and (slightly) less expensive.

Check back for more details on the 675LT closer to its Geneva Motor Show debut in March. The Sports Series is expected to appear at the 2015 New York Auto Show the following month.