Two magazines put two 2020 Toyota Supras on two dynos in two parts of the country on two different days. Both magazines came to the same result: Toyota underrated the power figures of the particular Supras being tested. In May, Car and Driver strapped a Supra to an all-wheel drive Dynojet dynamometer in Livernois, Michigan. CD's figures came to 339 horsepower and 427 lb-ft of torque at the wheels. After that, Motor Trend strapped a Supra to a Mustang eddy-current chassis dynamometer in Torrance, California. MT's weather-corrected numbers came to 332 hp and 387 lb-ft.
Toyota's official numbers for the 3.0-liter turbocharged inline-six cylinder sourced from BMW are 335 hp and 365 lb-ft, measured at the crank. Using the hoary conventional wisdom of driveline and hydraulic losses causing 15 percent of power to evaporate before reaching the wheels, we'd expect the Supra's power at the contact patch to be around 285 hp and 310 lb-ft. Even updating that parasitic loss figure to 10 percent for a modern drivetrain, we're still at around 300 hp and 328 lb-ft.