USA Today - BMW is creating a special high-performance edition of its M4 coupe aimed at pleasing both commuters and racers.
The 2016 BMW M4 GTS is aimed at giving thrills on the raceway as well as the street.
Its six-cylinder turbocharged 3-liter engine has a water injection system that boosts power to 493 horsepower. That's 16% more horsepower than in a conventional M4, which is already a higher-performance version of the 4-Series.
Only 700 will be made.
"We've taken a radical route with the set-up of the BMW M4 GTS to create a sports machine for the race track that delivers top-end dynamics and inspirational performance," says Frank van Meel, CEO of BMW in a statement. "It allows us to demonstrate what is possible today with a road-legal car."
Thee M4 GTS is capable of zero to 60 miles per hour in 3.7 seconds. Top speed is limited to 189 mph.
The water injection system works by spraying a mist into the intake manifold, causing it to evaporate. That lowers the temperature of the intake air. The resulting lower engine combustion temperature reduces engine knock whilee allowing the engine to operate at higher boost pressure and with advanced spark timing, according to BMW.
Besides more power, the system is designed to enhance engine life and lower wear.
by Chris Woodyard
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