What a Porsche 718 Boxster/Cayman GT4 Is Actually Worth
True Value$144,300
Fair Range$127,000 - $161,700
Median Recent Sold$168,500
VerdictBUYER ADVANTAGE
As of July 2026, CarSearch.Pro's True Value model estimates a typical Porsche 718 Boxster/Cayman GT4 is actually worth $144,300 (fair range $127,000 to $161,700). Unlike the median asking price shown above, True Value is anchored to 100 recent confirmed sales, normalized for mileage, and blends auction hammer prices (grossed up for buyer's premium) with real-world asking behavior.
Sellers are currently asking a median of $192,000 — about 33% above what these cars have actually been selling for. That gap favors patient buyers: negotiate from the sold data, not the ask.
As of July 2026, the Porsche 718 Boxster/Cayman GT4 market has 448 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $191,985, with the middle 50% of listings priced between $129,998 and $210,000. Porsche 718 Boxster/Cayman GT4 prices have decreased 1.7% over the past quarter, from a median sale price of $173,000 to $170,000.
The typical Porsche 718 Boxster/Cayman GT4 on the market has 5,652 miles. Listings spend an average of 56 days on market before selling or being removed.
Current Porsche 718 Boxster/Cayman GT4 Pricing
A fair price for a Porsche 718 Boxster/Cayman GT4 in July 2026 is between $129,998 and $210,000 (25th to 75th percentile). Prices range from $114,995 to $225,168 across 448 active listings.
Price Distribution (448 Active Listings)
Percentile
Price
Meaning
10th
$114,995
Budget / project cars
25th
$129,998
Below average price
Median (50th)
$191,985
Typical market price
75th
$210,000
Above average / premium
90th
$225,168
Top tier / low miles / rare spec
The average asking price is $174,423, which is lower than the median, suggesting pricing is relatively symmetrical across the market.
Price by Mileage
Mileage Range
Listings
Median Price
Under 10,000 mi
292
$204,990
10,000 - 25,000 mi
111
$129,522
25,000 - 50,000 mi
28
$114,995
50,000 - 100,000 mi
6
$135,595
Porsche 718 Boxster/Cayman GT4 Price Trends
Porsche 718 Boxster/Cayman GT4 prices have decreased 1.7% over the past quarter. In 2026-Q3, the median sale price was $170,000 across 1 sales, down from $173,000 in 2026-Q2.
On a year-over-year basis, Porsche 718 Boxster/Cayman GT4 prices are down 10.4% ($170,000 vs. $189,800 a year ago).
Porsche 718 Boxster/Cayman GT4 Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2024-Q4
43
$191,000
$170,719
2025-Q1
29
$180,000
$167,525
2025-Q2
67
$185,424
$174,261
2025-Q3
69
$189,800
$177,067
2025-Q4
81
$187,000
$174,646
2026-Q1
56
$143,918
$153,280
2026-Q2
25
$173,000
$165,040
2026-Q3
1
$170,000
$170,000
Best Value Porsche 718 Boxster/Cayman GT4 by Model Year
The 2016 Porsche 718 Boxster/Cayman GT4 offers the best value with a median price of $119,900 across 95 listings. The most expensive model year is 2025 at a median of $219,000.
Median Price by Model Year
Year
Listings
Median Price
Min
Max
2016
95
$119,900
$77,999
$209,995
2017
1
$11,050
$11,050
$11,050
2018
2
$52,995
$32,582
$52,995
2019
1
$7,500
$7,500
$7,500
2020
36
$129,995
$112,900
$159,995
2021
17
$139,500
$97,000
$169,981
2022
23
$144,979
$2,988
$320,000
2023
109
$195,617
$89,871
$249,991
2024
78
$206,993
$173,000
$279,000
2025
84
$219,000
$190,691
$299,900
How Mileage Affects Porsche 718 Boxster/Cayman GT4 Value
Most price guides assume value falls linearly with mileage. It doesn't. CarSearch.Pro learns the actual price-vs-mileage curve for the Porsche 718 Boxster/Cayman GT4 from confirmed sales, referenced to a typical example at about 3,678 miles:
Odometer (approx.)
Value Multiplier
Implied Value
553 mi
1.31x
$189,147
4,671 mi
1.00x
$143,811
10,520 mi
0.86x
$124,050
18,430 mi
0.86x
$123,581
38,148 mi
0.91x
$130,703
63,246 mi
0.86x
$123,743
97,980 mi
0.75x
$107,867
154,919 mi
0.65x
$93,596
300,000 mi
0.52x
$74,994
Low-mileage examples carry a real premium in this market: around 553 miles, cars trade at roughly 1.31x the reference value. At the other end, 300,000-mile examples trade at about 0.52x. Implied values here are anchored to this market's True Value.
Porsche 718 Boxster/Cayman GT4 Price Forecast
Horizon
Direction
Probability
Regime
Past Accuracy
6 months
↑ UP
54%
volatile
54% over 41 tests
12 months
↑ UP
57%
volatile
60% over 35 tests
24 months
↑ UP
61%
volatile
70% over 23 tests
These are probabilistic direction calls, not price targets. The "Past Accuracy" column is this model's real walk-forward record on the Porsche 718 Boxster/Cayman GT4 — every month we re-run the forecast as if we only knew what was knowable then, and grade it against what actually happened. We publish the hit rate either way. Full methodology & track record →
Where to Buy a Porsche 718 Boxster/Cayman GT4
The highest concentration of Porsche 718 Boxster/Cayman GT4 listings is in FL with 10 active listings, followed by TX (9), CA (8), NJ (7), GA (6).
Regional pricing varies significantly. The lowest median price is in CO at $99,000, while GA has the highest at $210,000. Buyers willing to travel or arrange transport may find savings of $111,000.
Top States by Inventory
State
Listings
Median Price
FL
10
$200,298
TX
9
$112,995
CA
8
$132,988
NJ
7
$112,800
GA
6
$210,000
MA
6
$117,000
MI
5
$125,000
AZ
5
$192,991
IL
4
$145,000
NY
4
$127,995
Porsche 718 Boxster/Cayman GT4 Market Velocity
Porsche 718 Boxster/Cayman GT4 listings spend an average of 56 days on market. This is a slower market. Buyers have negotiating leverage, especially on listings that have been active for 60+ days. Sellers should consider competitive pricing from the start.
The median time on market is 34 days. The lower median suggests most cars sell relatively quickly, while a smaller number of overpriced listings drag up the average.
Fair price range: $129,998 to $210,000. The median is $191,985. Anything below $129,998 is a strong value; above $210,000 should be premium condition, low miles, or a desirable specification.
Prices stable: Porsche 718 Boxster/Cayman GT4 values have been relatively flat. There is no urgency to time the market.
Best value year: The 2016 model year has the lowest median price at $119,900, making it the most accessible entry point into Porsche 718 Boxster/Cayman GT4 ownership.
Take your time, but don't delay: Average days on market is 56. You have some time to research, but the best deals still go fast.