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Novitec Alfa Romeo 8C Spider adds boost for a sensuous 600 hp

Novitec has laid hands on the near-perfect Alfa Romeo 8C to create the 8C Spider Kompressor, a car the tuner claims is the “most powerful street-legal Alfa Romeo of all time.” Heady words, but they're nicely backed up by a supercharged version of the 4.7-liter Alfa V8 cranking out 600 hp and 434 lb-ft of torque. That's up from approximately 450 hp and 346 lb-ft on a stock Alfa Romeo 8C Competizione. Tweaks supporting the force-fed mill include a water-to-air intercooler, custom injectors and revised fuel and ignition mapping, plus a variable stainless-steel exhaust system.

Mercedes GLA 45 AMG Concept teased (video)

Mercedes GLA 45 AMG Concept teased This was a surprise – the Mercedes GLA 45 AMG Concept. With Mercedes take on a compact SUV with the new GLA revealed at Frankfurt in September, we’d expected Mercedes would put the 4WD power plant from the A 45 AMG and CLA 45 AMG under the skin of the new GLA to make a very hot compact SUV. But we hadn’t expected it yet.

2013 facelift for BMW Z4 & new Z4 M35i

BMW are planning to facelift the Z4 for 2013 and add a new M Performance model – the BMW Z4 M35i – to replace the Z4 sDrive35iS. Four years since the current BMW Z4 was launched at the Detroit Motor Show in January 2009, it looks like BMW’s roadster is getting a facelift to keep it fresh, and a new M Performance model – the BMW Z4 M35iS. Changes to the 2013 Z4 are likely to be modest, with the usual facelift fare of new bumpers, new lights, new alloys, titivated ‘more upmarket’ interior and tweaks to the engines to offer more power with better economy and lower emissions.