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Record claims
The title of "world's fastest production road car" is constantly in contention, especially because the term "production car" is not well-defined.
The McLaren F1 has a top speed of 231 mph (372 km/h),[25] restricted by the rev limiter at 7500 rpm. The true top speed of the Mclaren F1 was reached in April of 1998 by the five-year-old XP5 prototype. Andy Wallace (racer) piloted it down the 9 km straight at Volkswagen’s Ehra test track in Wolfsburg, Germany, setting a new world record of 243 mph (391 km/h) at 7800 rpm. As Mario Andretti noted in a comparison test, the F1 is fully capable of pulling a seventh gear, thus with a higher gear ratio or a seventh gear the Mclaren F1 would probably be able to reach an even greater top speed (something which can also be observed by noticing that the top speed was reached at 7800 rpm while the peak power is reached at 7400 RPM).