Hardest Working Powertrains In the Business

As with sports teams, smartphones and cars in general, not all horsepower ratings are created equal. The more instrumented tests you see the clearer it becomes that 200 horsepower from one brand does not necessarily result in the same performance as 200 horsepower from another. There are certainly some serious underachievers in the industry but for now let's keep it positive and take a look at three of the hardest working powertrain combinations (in alphabetical order) that make a mockery of physics and their competition.

Audi S6 4.0T V8

The current Audi S6 dropped a pair of cylinders and 1.2 liters of displacement between generations. It did gain a pair of turbos but on paper it lost 15 horsepower and gained only an irrelevant 8 lb-ft of torque. On paper the S6 represents a rare case of a new generation delivering less horsepower than before, something almost unheard of for a performance model. Thankfully, the S6 is an overachiever for the ages with magical turbos, all wheel drive grip and a dual clutch gearbox with launch control working in tandem to knock of nearly two seconds (3.7) from the sprint to 60 and add 11 mph (115) in the 1/4 mile trap speed versus the previous generation. It's one thing to compare models 6 years apart but let's see how the 4.0T compares to its contemporary competition. The Cadillac CTS Vsport brings the same 420 horsepower, more torque and less weight to the table yet it's almost a second slower to 60 and about 2.5 seconds to 130. The CTS Vsport is no slouch but it's hard to believe that the S6 is only packing 420 horsepower when it delivers performance on par with the 556 horsepower CTS-V.