2020 McLaren GT Long-Term Test Update 1: No Problems So Far With the Everyday Supercar

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2020 McLaren GT Long-Term Test Update 1: No Problems So Far With the Everyday Supercar

Am I doing this right? For the first 2,211 miles of my “ownership” (long-term test) of the 2020 McLaren GT, the car averaged 19.2 mpg. That’s better than the EPA’s official 18-mpg combined rating achieved by the feather-footed testers who never take a car beyond 60 mph during the city and highway fuel-consumption testing cycles. Yep, 19.2 mpg—and that’s U.S. gallons, not the supersized British ones where I live in the U.K.—in a 612-horsepower, 203-mph supercar.

Not so, er, fast. As the EPA itself points out, “Your mileage will vary.” And the 2020 McLaren GT’s fuel consumption so far reflects its duty cycle. I’ve been using it as I would use a regular car here, traveling to new vehicle launches and events in the U.K. and driving to visit family living outside London. That means regular 100- to 200-mile stints of highway cruising and the occasional quick run along a quiet country road, bookended by short commutes through stop-start London traffic. (And by short, I’m talking distance, not time; it can take up to an hour to do the last 4 miles home in heavy traffic.)

Speed cameras infest many of Britain’s 70-mph motorways, so the McLaren has spent a lot of time, traffic permitting, running on them with the cruise control set at precisely 74 mph, the 4.0-liter twin-turbo V-8 turning just past 2,000 rpm in seventh gear. At these speeds the wildly optimistic trip computer suggests the GT is returning better than 27 mpg. Although I’ve yet to confirm it, I suspect the real number is closer to the EPA’s 22-mpg highway rating. For the full story, check out this article from Motor Trend.

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