Dyno run reveals how BMW’s two-ton four-door is nearly as quick as a Ford GT in our track tests.

We’re well aware of the awesomeness of the engine found in the BMW M5 and M5 Competition, code name S63B44T4. The twin-scroll turbochargers nestled between the 4.4-liter V-8’s cylinder banks pressurize the combustion chambers with 25.9 psi at max boost. BMW rates the base engine at 600 horsepower and the Competition model’s at 617 horsepower—at the crankshaft—with both making 553 lb-ft of torque.
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https://www.caranddriver.com/features/a27437648/2019-bmw-m5-dyno-horsepower/