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174-mph Volkswagen Golf R400 heads for Beijing motor show

Volkswagen has divulged plans to reveal a spectacular new Golf R-based concept car called the Golf R400 at this weekend's Beijing auto show. Said to preview a possible limited production model from Volkswagen's increasingly active R performance car division, the Golf R400 runs a powered-up version of the Golf R's turbocharged 2.0-liter direct-injection gasoline engine aimed at providing it with the sort of firepower to match the current king of the Euro hot hatchback brigade, the Mercedes-Benz A45 AMG. VW The VW Golf R400 makes 395 hp from a 2.0-liter turbocharged four-cylinder engine.

2014 Aston Martin Rapide S rips out 550 hp

If you remember nothing else about the updated 2014 Aston Martin Rapide–now with an S added to the name–keep this in mind: Power surges 80 hp to a whopping 550 hp from the naturally aspirated 5.9-liter V12 engine. Aston Martin dipped into its expertise gleaned from the World Endurance Championship GT competition to fortify output and efficiency. Torque increases to 457 lb-ft (from 443 lb-ft), and top speed is pushed 7 mph to 190.

GM taps Opel designs for future Buicks in the U.S.

Even as General Motors explores the sale of Opel, it will tap its European unit as a source for future Buick sedans. For the past two years, GM has shared Opel vehicles and design with Saturn. Sources familiar with GM's plans say those products now will go to Buick.