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| | Audi Reaches V8 Engine Milestone - GermanCarFans.com |
 | | As broad similarities in its specification and layout suggest, the 4.2-liter, bi-turbocharged V8 engine which breathes 450bhp into the RS 6 quattro is a direct descendant of the 610bhp unit at the heart of the all-conquering Infineon Audi R8 sports racing car. |
 | | Like the Le Mans-contesting R8 sportscar, the road-going RS 6 quattro is equipped with two intercooled turbochargers, helping to boost the output of the 4.2-liter V8 to 450bhp, and its torque to an impressive 560Nm, delivered right from 1,950rpm to 5,600rpm. |
 | | More recently, a relative of this engine transformed the Audi 100 into the 1988 Audi V8 quattro - the brand's first foray into the luxury road car market, and a successful competitor in the German Touring Car Championship. |
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