A 2020 McLaren Senna GTR, chassis #21 of just 75 built, is on the block at Bring a Trailer, offering one of the wildest track-only McLarens you can actually go and bid on rather than just stare at in a collection. The car is listed by Silver Arrow Cars Ltd in Newport Beach, California, and shows only 845 kilometers, or about 525 miles, on its digital odometer. Current bidding is fast approaching $700,000 with six days left of bidding.

A Track-Only Senna Turned Up To 11
The Senna GTR is McLaren’s idea of what happens when you stop worrying about license plates. It uses the MonoCage III carbon-fiber monocoque and a twin-turbocharged 4.0 liter V8 rated at 814 horsepower and 590 pound-feet of torque, driving the rear wheels through a seven speed dual clutch automatic. Dry weight is quoted at 2,619 pounds, already lighter than the road car, but the real story is the aero.
Compared with a standard Senna, the GTR has a 3 inch wider front track and a 2.7 inch wider rear track, a far more aggressive front splitter, a deeper rear diffuser and a huge rear wing with a drag reduction system. McLaren says it can generate 2,205 pounds of downforce at 155 miles per hour, about 442 pounds more than the street car at the same speed. That puts it in the same mental space as the factory track specials from Ferrari and Aston Martin rather than normal supercars.

Barely Run, Fully Loaded
This example wears a clean white exterior over a black Alcantara interior. Outside, it has an anti collision radar system with rear cameras, roof scoop, front and side intakes, polycarbonate windshield and windows, and integrated pneumatic air jacks. The 19 inch staggered center lock wheels are wrapped in Pirelli slicks, and the suspension is straight out of McLaren’s GT3 playbook, with double wishbones, four way adjustable Öhlins dampers and adjustable anti roll bars.
Inside, you get GTR branded Sabelt fixed back carbon fiber seats with six point harnesses, an integrated roll cage, fire suppression system, titanium nitride pedals, leather door pull straps, air conditioning, a data logger and a pit to car radio. A plaque in the driver side door jamb identifies it as car #21 of 75. The Carfax report shows no accidents or damage, and the listing notes that the current seller acquired it in 2025 and is offering it on a bill of sale, as you would expect for a pure track car.

Where It Sits In The McLaren Food Chain
In McLaren’s world this is near the very top: rarer and more extreme than most road legal models, but still loosely tied to a production car rather than being a pure racing prototype. If you want something slightly more usable and slightly less insane, there are still interesting options. Go further down the ladder and the original carbon tub supercar, the 12C, is even more accessible.
The Senna GTR is different though, it is a car you trailer, not commute in, and you spend your money on lap time and rarity rather than convenience. For the right buyer, though, a low mile, documented, numbered GTR like this one is exactly the sort of thing that will not come around often, on Bring a Trailer or anywhere else.
from Autoblog News https://ift.tt/cWoFk13
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