Chapter 1 · 718 Boxster · by HBi Auto
Buying a Porsche 718 Boxster GTS 4.0
What it really sells for, what moves the price, what to check and the maintenance it needs.
The 718 Boxster GTS 4.0 is part of the 718 Boxster generation (2017 on). This lesson covers what it really sells for, what moves the price, what to check and how to look after it.
- Built
- 2021–
- Cars on 911 Tracker
- 36
- Sales on record
- 27
- Median, last 24 months
- $94,000
What to pay
In the last 24 months, 14 cars sold on 911 Tracker for a median of $94,000; the middle half sold between $87,500 and $99,100. The trend line through every sale on record moves about −1% a year. In the last 24 months, manual cars sold for a median of $94,000 (9 sales) and PDK or automatic cars for $94,000 (5 sales): the manual premium is about 0%.
718 Boxster GTS 4.0: median sale price by year
Years with 5 or more VIN-checked US sales, as of Oct 30, 2026. Hover a bar for the number of sales. Every single sale is on 911 Tracker with a free account.
Show as a table
| Year | Median sale | Sales |
|---|---|---|
| 2023 | $91,000 | 5 |
| 2024 | $97,000 | 7 |
| 2025 | $92,900 | 8 |
| 2026 | $96,800 | 6 |
911 Tracker, VIN-checked US sales, as of Oct 30, 2026. Medians need 5 or more sales.
What to look for
Flat-four vs flat-six
Decide first; it changes the price and the resale more than miles.
Track use
GT4 and Spyder: brakes, tires, alignment and over-rev history.
Maintenance schedule
Maintenance planner
Pick the car, enter its miles and model year: the planner shows what is due now, the next services and the full schedule, whichever comes first, miles or years.
| What is done | 10k | 20k | 30k | 40k | 50k | 60k | 70k | 80k | 90k | 100k | 110k | 120k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Engine oil and filterEvery 10,000 mi, 1 yr · US Porsche dealer | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
| Inspection: lights, brakes, tires, leaks, fault memory, test driveEvery 20,000 mi, 2 yr · US Porsche dealer | ● | ● | ● | ● | ● | ● | ||||||
| Cabin (pollen) filterEvery 20,000 mi, 2 yr · US Porsche dealer | ● | ● | ● | ● | ● | ● | ||||||
| Brake fluidEvery 20,000 mi, 2 yr · US Porsche dealer | ● | ● | ● | ● | ● | ● | ||||||
| Engine air filtersEvery 40,000 mi, 4 yr · US Porsche dealer | ● | ● | ● |
718 Boxster & Cayman (4-cylinder), 2017 on: what is done, version by version
Not verified yet: Spark plugs: US dealers disagree (30,000 or 40,000 mi); Drive belt and transmission oils; GTS 4.0, GT4 and Spyder (six-cylinder) schedules.
Confidence: Low-medium. Sources: 1.
Intervals are whichever comes first, miles or years. "Porsche factory (converted from km)" means Porsche's own figure for another market, turned into miles with the same km-to-mile pairing Porsche uses in the US. Your car's own maintenance booklet is the final word. HBi Auto's recommendations for cars that are tracked, driven hard or stored are being added by our service team.
What it really costs to buy a 718 Boxster GTS 4.0
Your numbers, your state. Everything stays on your screen.
- Tax
- –
- Fees, shipping, inspection
- –
- Reserve
- –
- Total to have ready
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The 111-point checklist: 718 Boxster GTS 4.0
HBi Auto's full 111-point inspection, the same list our technicians sign on every car we certify. Tick as you go; your ticks stay on this device. Print it, or download the blank form (PDF) and take it to your inspection.
0 checked
Go deeper
Written by the 911 Buyers and HBi Auto team in Mocksville, NC. Market numbers come from 911 Tracker's VIN-checked US sales and say what they are based on; maintenance intervals say where each one comes from. This course is general information, not an inspection, an appraisal or legal or tax advice.