Porsche Cayman GT4

2015 to 2016 · Coupe

A 2015 Porsche Cayman GT4 cost $84,600 new. Over the past 12 months, 42 have sold publicly at a median of $99,750. The Shifty Estimate for a well-kept example is $112,700. Across the sales we have on file, prices ran from $37,500 to $142,000, depending on mileage, color, and history.

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Shifty Estimate
$112,700
High confidence · $68K to $130K
Up 4.2% over 12 months
Oct 2025Rolling 6-month medianOct 2026
Median · 12 mo
$99,750
Sales · 12 mo
42
Original MSRP
$84,600Up 33% since new

The market

Every recorded 2015 Porsche Cayman GT4 sale, by date and price
Oct 2026 · Cars & Bids
$82,500 · 55,500 mi · White
See this car
$50k$75k$100k$125kMar 202420252026SHIFTY ESTIMATE $113k
Sold Bid to, not sold
90 sales · 17 unsoldmedian $100kupdated Oct 2026

Community

Latest results

The newest 2015 Porsche Cayman GT4 sales with photographs
2015 Porsche Cayman GT4, sold Oct 2026

Sold $116,000

2016 · White (C9A) · 19,000 mi
Oct 17, 2026 · Bring a Trailer
2015 Porsche Cayman GT4, sold Sep 2026

Sold $125,000

2016 · White · 1,000 mi
Sep 30, 2026 · Bring a Trailer
2015 Porsche Cayman GT4, sold Sep 2026

Sold $66,000

2016 · GT Silver Metallic · 7,000 mi
Sep 22, 2026 · Bring a Trailer
2015 Porsche Cayman GT4, sold Sep 2026

Sold $109,000

2016 · White · 1,300 mi
Sep 21, 2026 · Bring a Trailer
2015 Porsche Cayman GT4, sold Sep 2026

Sold $142,000

2016 · Agate Gray Metallic · 3,500 mi
Sep 4, 2026 · Bring a Trailer
2015 Porsche Cayman GT4, sold Aug 2026

Sold $112,000

2016 · Sapphire Blue Metallic · 25,800 mi
Aug 14, 2026 · Cars & Bids

Every 981

Sold prices, last 12 months · Oct 27, 2026
Every 981. Sold prices, last 12 months · Oct 27, 2026
GT42015 to 2016GTS2015 to 2016S2013 to 2016
Shifty Estimate$112,700$62,000Low confidence$54,100
Sold median$99,75042 salesToo few sales to call1 sale$50,25010 sales
12-month moveUp 4.2%Too few sales to callDown 6.1%
For saleNoneNoneNone
Other Cayman generations

Specifications

Engine
Naturally Aspirated Flat-6, 3.8L
Power
385 hp
Torque
310 lb-ft
0 to 60
4.2 s
Top speed
183 mph
Transmission
Manual
Drivetrain
RWD
Curb weight
2,910 lb
Original MSRP
$84,600
Designer
Michael Mauer

Common questions

How much does a Porsche Cayman GT4 cost?

A 2015 Porsche Cayman GT4 cost $84,600 new. Over the past 12 months, 42 have sold publicly at a median of $99,750. The Shifty Estimate for a well-kept example is $112,700. Across the sales we have on file, prices ran from $37,500 to $142,000, depending on mileage, color, and history.

What is a 2015 Porsche Cayman GT4 worth today?

The Shifty Estimate is $112,700, up 4.2% over the past 12 months. Confidence is high: 42 public sales in a year gives a firm read.

Is a Porsche Cayman GT4 a good investment?

It has appreciated 33% against its $84,600 list price. Values are up 4.2% over the past 12 months. The caution is spread, not direction: across the sales we have on file, prices ran from $37,500 to $142,000, and mileage explains most of that.

How many Porsche Cayman GT4 have sold?

Shifty has 90 public sales of the Porsche Cayman GT4 on file. The earliest was on Mar 18, 2024.

What is the most expensive Porsche Cayman GT4 sold?

The highest public sale on file is $142,000, on Sep 4, 2026, with 3,500 mi.

What has a Porsche Cayman GT4 sold for at auction?

The 3 most recent public sales we have on file:

  • $82,500Oct 19, 2026White · 55,500 mi
  • $116,000Oct 17, 2026White (C9A) · 19,000 mi
  • $77,419Oct 1, 202624,957 mi

About the 2015 Porsche Cayman GT4

The Cayman GT4 elevated Porsche's mid-engine platform to new heights, borrowing the 3.8-liter flat-six from the 911 Carrera S to produce 385 hp. This track-focused variant featured aggressive aerodynamics, including a fixed rear wing and front splitter, while PASM sport suspension and mechanical limited-slip differential sharpened handling. The manual-only transmission and naturally aspirated engine created an increasingly rare combination in modern Porsches. Production was limited and heavily oversubscribed, with many dealers adding significant markups to the $84,600 MSRP. The GT4 proved that Porsche's mid-engine chassis could rival the 911's performance while offering superior balance and feedback. As the final naturally aspirated GT4 before turbocharging arrived, these have become highly collectible, representing the pinnacle of analog Porsche engineering in the modern era.

Sales and listings

Showing 20 of 118 on file

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