The classically styled BMW Z8 roadster has fallen into the hands of German aftermarket firm Senner Tuning, which has presented a new sports package with a selection of performance upgrades.

In stock form, the Bavarian roadster sports the E39 M5's 5.0-liter V8 engine delivers 400-horses and a peak torque of 500Nm(368.8 lb-ft).

After the addition of a sports filter, a custom exhaust system and a light ECU tune, output is lifted to 450-horses and 535Nm (394.6 lb-ft) with Senner stating that the modded Z8's top speed is in excess of 300km/h (186mph).

Not all German tuning firms are obsessed with insane power numbers and questionable cosmetic makeovers, as Senner Tuning's new package for the Mercedes-Benz SLS AMG Gullwing sports car shows.

The Ingelheim am Rhein-based tuner starts with the SLS AMG's 6.2-liter V8 engine, which normally produces an output of 571-horsepower and a peak torque of 650Nm (479 lb-ft). A revised ECU along with a stainless steel sports exhaust system and a high-performance air filter boots these numbers 606HP and 690Nm (509 lb-ft).

Looking to offer BMW X6 xDrive40d owners more options for customizing their diesel-powered model, Germany's Senner Tuning has released a new performance and styling package for the sporty crossover.

For performance purposes, Senner Tuning begins with the X6's straight-six turbocharged diesel engine by adding a sport air filter and a remapped ECU to lift output from 306HP and 600Nm to 336-horses and 665Nm (490.5 lb-ft).

The five-door hatchback version of the latest generation of the Opel Astra has caught the attention of Senner Tuning that has introduced a new performance and styling package for models equipped with the 1.4-liter turbocharged petrol engine. Read more »

Following the launch of a full performance and styling package for the Audi A1, Germany's Senner Tuning is now offering a standalone set for the premium supermini fitted with the factory S-Line kit.

The tuner's package comprises of a new rear apron made out of glass-fiber-reinforced polymeric material FGPC and new 90-mm tailpipes on either side instead of the twin outlets on the left side of the bumper.

The crew over at Senner Tuning have pointed their guns on the pre-facelift Audi S5 Sportback with the release of a new package that aims to improve both the performance and styling aspects of Ingolstadt's liftback model.

Underhood, the S5's 3.0-liter TSI V6 gains a software optimization, a new air filter and a custom exhaust system, all of which do their part to lift output from 333HP and 440Nm to 445-horses and 530Nm (390.9 lb-ft) of peak torque.

Continuing its assault on Audi's portfolio, German aftermarket specialist has introduced a new package for the Q5 SUV fitted with the 2.0-lited TDI turbo diesel engine.

Thanks to a new performance kit that includes an ECU upgrade, sport filters and a custom exhaust system, the four-cylinder diesel engine's output is lifted from 170-horses and 350Nm to 213HP and 445Nm (328.2 lb-ft).