The Audi S3 is sporting a 2.0 litre four-cylinder 16 valve in-line engine, the BMW M135i has a 3.0 L six cylinder turbocharged engine. Click the video to see which car is fastest in this high speed run.
2013 BMW M135i xDrive vs 2013 Audi S3 in a high speed run
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About the Author: Doug
Doug the unofficial webmaster and fellow petrol head supporter, writer and quizmaster here at Double Apex.