![]() ![]() Press the PDK Sport button on the center stack and the DCT is even more alert, keeping the engine revving high to eke out every one of its 414 horsepower. The transmission knows when you're driving hard and holds gears near redline to accommodate. Left to its own devices, gear changes are as smooth as they are quick, and they're perfectly timed, too. No surprise, PDK works beautifully with the GT4's 4.0-liter flat-six. Of course, the result is a still-dismal 18 mpg city, 24 mpg highway and 20 mpg combined, but hey, any improvements are good. PDK also allows the engine to produce a skosh more torque - 317 pound-feet, up from 309 - and even makes the GT4 a little more efficient, with 1-mpg increases across the board. It'll hit 60 mph in 3.7 seconds, compared with 4.2 seconds with the manual transmission. Despite adding 68 pounds to the GT4's curb weight, the Cayman is quicker with PDK. It's the same gearbox you'll find in a lot of the company's other sports cars, and it comes with a number of benefits. For 2021, the Cayman GT4 is available with Porsche's seven-speed PDK dual-clutch automatic transmission.
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