Usually, when we’re referring to performance models, diesel-powered ones don’t enter the conversation. Yet, they do exist, even in small numbers.

Audi is a prime example of that. When the European version of the S5 reached its midlife refresh point, it switched from a 3.0-liter twin-turbo gasoline V6 to a 3.0-liter turbodiesel V6. Rated at 347 PS (342 HP / 255 kW) at 3,850 rpm and 700 Nm (516 lb-ft) of torque between 2,500 and 3,100 rpm, the engine is assisted by an electric-powered compressor for quicker acceleration and a mild hybrid system that improves efficiency.

Performance remains worthy of an S-badged Audi, with the S5 Sportback going from 0 to 100 km/h (62 mph) in 4.9 seconds and reaching an electronically limited top speed of 250 km/h (155 mph).

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Motivated by emissions regulations, the move might not sit very well with some potential European customers, especially since North America’s 2020 Audi S5 is likely to keep the 3.0-liter twin-turbo V6 making 349 HP (354 PS).

Those who don’t mind having a diesel under the hood, though, might be interested in the upgrades offered by ABT Sportsline for the Euro-spec 2020 S5 Sportback. The highlight of the tuning package is the ABT Power performance upgrade, which uses the ABT Engine Control (AEC) to increase the 3.0-liter TDI’s output to 384 PS (379 HP) and peak torque to 760 Nm (560 lb-ft).

While not mind-blowing, this upgrade should result in improved performance, although ABT Sportsline does not share performance specs. In addition to the uprated powertrain, the tuner offers a suspension upgrade consisting of ABT height adjustable-suspension springs that consists of adjustable lowering from 15 to 40 mm (0.6 – 1.6 inches) and ABT anti-roll bars. Finally, the aftermarket specialist offers new wheels as well, namely 20-inch ABT Sport GR alloys with a glossy black finish and diamond-machined rim flange.

These upgrades are available both for the pre-facelift S5 Sportback as well, which for a short period of time before the launch of the 2020 model was available with the 347 PS (342 HP) 3.0-liter TDI V6.

Note: Pre-facelift Audi S5 Sportback TDI pictured