The high-performance version of BMW's new 4-series coupe goes by name M4.

Published:Caption:Photo:Josh Miller/CNET

BMW's line of M cars were originally created to reward its race drivers with special versions of its street-legal cars.

Published:Caption:Photo:Josh Miller/CNET

The M4 feature upgrades to engine, suspension, transmission, steering and stability-control systems.

Published:Caption:Photo:Josh Miller/CNET

The engine is a 3-liter inline six-cylinder with two turbochargers and direct injection, making 425 horsepower and 406 pound-feet of torque.

Published:Caption:Photo:Josh Miller/CNET

BMW uses a new electric power steering system, allowing different driving programs.

Published:Caption:Photo:Josh Miller/CNET

LED headlights are an option for the new M4.

Published:Caption:Photo:Josh Miller/CNET

BMW recently revamped its naming strategy, designating all its coupes with even model numbers.

Published:Caption:Photo:Josh Miller/CNET

18-inch wheels come standard, and ceramic brake rotors are optional.

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These fender vents serve to flow air out of the wheel well.

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A carbon-fiber roof lessens weight at the top.

Published:Caption:Photo:Josh Miller/CNET

The M Dynamic Mode stability program lets the rear end of the M4 drift out in corners, but holds the car back from a full spin-out.

Published:Caption:Photo:Josh Miller/CNET

Sport seats include adjustable bolsters.

Published:Caption:Photo:Josh Miller/CNET

BMW includes a number of features standard in the M4, such as navigation. However, a rear-view camera is optional.

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BMW retains its simple gauge design and employs a monochrome LCD in the center for trip and driver information.

Published:Caption:Photo:Josh Miller/CNET

The seven-speed dual-clutch transmission offers impressive performance, allowing lightning-fast gear changes at the touch of a paddle.

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The iDrive controller incorporates a touchpad, which lets drivers trace letters and swipe across a map.

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The wide LCD sits up on the dashboard, showing a simple main menu screen.

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Performance gauges show M4 drivers live horsepower and torque output.

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The M4 includes two programmable M buttons for the car's many drive settings.

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Drivers can set the stability program, steering, throttle, transmission and the suspension, when the adaptive suspension option is present.

Published:Caption:Photo:Josh Miller/CNET

BMW's navigation system shows richly detailed maps and includes very broad live traffic coverage.

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HD radio comes standard.

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BMW's music library screen has always been too complicated for quick operation on the road.

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Digital audio sources include the car's onboard hard drive, Bluetooth streaming and a USB port for drives and iOS devices.

Published:Caption:Photo:Josh Miller/CNET

BMW Connected Drive integrates smartphones, adding a number of useful apps to the car's electronics.

Published:Caption:Photo:Josh Miller/CNET
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