What a Porsche 718 Boxster/Cayman GT4 Is Actually Worth
True Value$163,000
Fair Range$143,500 - $182,600
Median Recent Sold$168,000
VerdictWATCH
As of October 2026, CarSearch.Pro's True Value model estimates a typical Porsche 718 Boxster/Cayman GT4 is actually worth $163,000 (fair range $143,500 to $182,600). Unlike the median asking price shown above, True Value is anchored to 109 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 $181,900 — about 12% above what these cars have actually been selling for. That gap favors patient buyers: negotiate from the sold data, not the ask.
Well-supported value · momentum improving — but volatile.
As of October 2026, the Porsche 718 Boxster/Cayman GT4 market has 212 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $179,999, with the middle 50% of listings priced between $127,841 and $209,900. Porsche 718 Boxster/Cayman GT4 prices have increased 5.3% over the past quarter, from a median sale price of $189,995 to $199,995.
The typical Porsche 718 Boxster/Cayman GT4 on the market has 8,163 miles. Listings spend an average of 73 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 October 2026 is between $127,841 and $209,900 (25th to 75th percentile). Prices range from $114,989 to $219,992 across 212 active listings.
Price Distribution (212 Active Listings)
Percentile
Price
Meaning
10th
$114,989
Budget / project cars
25th
$127,841
Below average price
Median (50th)
$179,999
Typical market price
75th
$209,900
Above average / premium
90th
$219,992
Top tier / low miles / rare spec
The average asking price is $169,880, 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
119
$205,890
10,000 - 25,000 mi
65
$129,024
25,000 - 50,000 mi
19
$119,950
Porsche 718 Boxster/Cayman GT4 Price Trends
Porsche 718 Boxster/Cayman GT4 prices have increased 5.3% over the past quarter. In 2026-Q4, the median sale price was $199,995 across 6 sales, up from $189,995 in 2026-Q3.
On a year-over-year basis, Porsche 718 Boxster/Cayman GT4 prices are up 6.9% ($199,995 vs. $187,000 a year ago).
Porsche 718 Boxster/Cayman GT4 Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2025-Q1
29
$180,000
$167,525
2025-Q2
67
$185,424
$174,261
2025-Q3
69
$189,800
$177,067
2025-Q4
80
$187,000
$173,856
2026-Q1
113
$172,000
$167,104
2026-Q2
207
$201,000
$191,214
2026-Q3
132
$189,995
$182,485
2026-Q4
6
$199,995
$186,575
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 $119,972 across 52 listings. The most expensive model year is 2025 at a median of $214,999.
Median Price by Model Year
Year
Listings
Median Price
Min
Max
2016
52
$119,972
$76,499
$139,995
2019
1
$25,000
$25,000
$25,000
2020
20
$138,273
$122,170
$149,999
2021
18
$143,499
$50,000
$169,981
2022
7
$145,490
$114,995
$189,000
2023
53
$198,890
$120,618
$249,000
2024
33
$210,898
$173,000
$279,000
2025
27
$214,999
$198,500
$269,900
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 3,900 miles:
Odometer (approx.)
Value Multiplier
Implied Value
527 mi
1.27x
$207,093
4,655 mi
1.01x
$164,320
10,448 mi
0.83x
$134,783
18,720 mi
0.82x
$134,112
38,148 mi
0.89x
$145,717
57,000 mi
0.81x
$132,808
97,980 mi
0.74x
$121,274
154,919 mi
0.66x
$107,432
300,000 mi
0.57x
$93,423
Low-mileage examples carry a real premium in this market: around 527 miles, cars trade at roughly 1.27x the reference value. At the other end, 300,000-mile examples trade at about 0.57x. 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
55%
volatile
70% over 44 tests
12 months
↑ UP
60%
volatile
68% over 38 tests
24 months
↑ UP
65%
volatile
92% over 26 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 13 active listings, followed by TX (12), NY (10), AZ (7), PA (6).
Regional pricing varies significantly. The lowest median price is in NC at $119,093, while SC has the highest at $207,735. Buyers willing to travel or arrange transport may find savings of $88,642.
Top States by Inventory
State
Listings
Median Price
FL
13
$178,520
TX
12
$135,990
NY
10
$142,507
AZ
7
$200,000
PA
6
$129,024
GA
5
$128,000
OH
5
$139,900
CA
5
$205,083
NC
4
$119,093
SC
3
$207,735
Porsche 718 Boxster/Cayman GT4 Market Velocity
Porsche 718 Boxster/Cayman GT4 listings spend an average of 73 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 55 days. The lower median suggests most cars sell relatively quickly, while a smaller number of overpriced listings drag up the average.
Fair price range: $127,841 to $209,900. The median is $179,999. Anything below $127,841 is a strong value; above $209,900 should be premium condition, low miles, or a desirable specification.
Trending up: Porsche 718 Boxster/Cayman GT4 prices have risen 5.3% recently. Buying sooner may save money if the trend continues.
Best value year: The 2016 model year has the lowest median price at $119,972, making it the most accessible entry point into Porsche 718 Boxster/Cayman GT4 ownership.
Negotiate: With an average of 73 days on market, sellers are often willing to negotiate. Listings over 60 days old are especially open to offers.