A factory fresh Audi R8 can run the quarter-mile somewhere between 10 and 12 seconds. That's depending on whether you have the V8 or the V10, and what year, trim, and transmission you have. But how fast can one be made after it leaves Ingolstadt? How about a quarter-mile time that is half of what it could run out of the box?
Underground Racing specializes in twin-turbocharged V10 performance. It has now smashed what it says is the world record for an R8 on the drag strip, running a six-second quarter - the first time any R8 has managed it.
The Charlotte-based performance shop calls itself the home of the world's fastest ...
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