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Porsche 911 GT3 and GT3 Cup hit the track at Road Atlanta

We compare Porsche's new GT3 to its race-ready sibling.

steven-ewing-headshot
steven-ewing-headshot
Steven Ewing
Steven Ewing spent his childhood reading car magazines, making his career as an automotive journalist an absolute dream job. After getting his foot in the door at Automobile while he was still a teenager, Ewing found homes on the mastheads at Winding Road magazine, Autoblog and Motor1.com before joining the CNET team in 2018. He has also served on the World Car Awards jury. Ewing grew up ingrained in the car culture of Detroit -- the Motor City -- before eventually moving to Los Angeles. In his free time, Ewing loves to cook, binge trash TV and play the drums.
Steven Ewing
Porsche 911 GT3 and GT3 Cup
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The new Porsche 911 GT3 meets its race car sibling.

Porsche 911 GT3 and GT3 Cup
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These cars are very similar, yet very different.

Porsche 911 GT3 and GT3 Cup
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The standard GT3 has a 4.0-liter flat-six and can be had with a manual or automatic transmission.

Porsche 911 GT3 and GT3 Cup
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Both cars look rad.

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And here they are racing around Road Atlanta.

Porsche 911 GT3 and GT3 Cup
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The GT3 Cup weighs only 2,772 pounds.

Porsche 911 GT3 and GT3 Cup
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The standard GT3 is a bit more, at over 3,100.

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The lighter weight, fabulous gearbox, sweet motor, improved downforce, new-for-2021 antilock brakes and bespoke 18-inch Michelin race tires stand out as the most noticeable changes on the new GT3 Cup.

Porsche 911 GT3 and GT3 Cup
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As you enter the GT3 Cup, you're met with a stripped interior, multifunction yoke-style steering wheel, a 10.3-inch color monitor, a six-point harness system and full roll cage.

Porsche 911 GT3 and GT3 Cup
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Keep scrolling for more photos of these two GT3s.

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