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German tuner Eisenmann repackages Audi R8

German exhaust tuner Eisenmann has developed a package of changes for the Audi R8 sports car, covering the exhaust system as well as several exterior additions made from carbon fiber, to create what it calls the Spark Eight by Eisenmann. Eisenmann says its aero package is more than just pretty looks and claims that it improves the car's driving dynamics and weight distribution. The changes include: -- Front fascia with grille and fins.

Callaway to give 2014 Chevrolet Silverado and GMC Sierra a boost

Callaway has just announced the debut of supercharged versions of the 2014 Chevrolet Silverado and GMC Sierra pickup trucks. This news comes only weeks after Callaway made known their intentions to fit market a version of the Silverado with an Eaton TVS supercharger. The Connecticut-based tuner has developed a new supercharger manifold and some other hardware for the new Chevrolet L83 Ecotec engine, which is expected to produce around 455 hp (though these are preliminary figures).

Nissan 370Z Nismo for UK & Europe: Official

The Nissan 370Z Nismo – a titivated and fettled 370Z – has finally arrived for the UK and Europe and will debut at the 2013 Geneva Motor Show. Nissan has fettled the 370Z Nismo for European roads and tastes and, although there’s a bit more power, the focus is on driver fun. That means the 370Z Nismo comes only with a six-speed manual gearbox and only as a coupe to keep things nice and stiff and keep the driver involved.