Unlike the BMW X5, the new 2020 BMW X6 is available with rear-wheel drive in the form of the base sDrive40i model, which uses a 335-hp turbocharged 3.0-liter inline-six. The top-of-the-line model is the X6 M50i powered by a twin-turbo 4.4-liter V8. It makes 523 horsepower and 553 lb-ft of torque, and BMW says it will hit 60 mph in 4.1 seconds, matching its claim for the new X5 M50i as well as the last generation X6 M. All models use an eight-speed automatic transmission. When equipped with optional summer tires, all X6s have a top speed of 155 mph, compared to 130 mph without summer tires.
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