The Panamera Diesel, which isn’t yet offered in the U.S., is powered by a 3.0-liter V-6 turbodiesel sourced from Audi and rated at 250 horsepower and 406 pound-feet of torque. Matched to Porsche’s Tiptronic S eight-speed automatic transmission, this engine will accelerate the Panamera from 0-60 mph in 6.8 seconds and on to a top a speed of 150 mph, according to the official stats. Oh, and it's also capable of returning a fuel economy of about 37.3 mpg on the European combined cycle.
Subjectively, Harris has no qualms with the car, though it should be noted Porsche has lent him one as a long-term tester. But to be objective, he puts it through a series of performance tests.
Go ahead and click play to find out whether he determines the Porsche Panamera Diesel is fast enough.