Live US dealer listings Median-priced benchmark Updated 2026-10-17
Market price · Used 2020 Porsche 718 Cayman 20 listings tracked

Used 2020 Porsche 718 Cayman Price in the US

A used 2020 Porsche 718 Cayman in the US typically lists for $133,629–$148,553, with a median asking price of $138,949 across 20 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $67,991, a 2020 S GTS in Scottsdale, AZ — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.

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Cheapest 10 listed right now

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  1. 2020 Porsche 718 Cayman
    $67,991
    2020 Porsche 718 Cayman S GTS
    38,822 mi · Scottsdale, AZ · Auto Boom Motor Co.
    View listing →
  2. 2020 Porsche 718 Cayman
    $122,170
    2020 Porsche 718 Cayman GT4
    18,000 mi · Bayside, NY · SR Auto Group
    View listing →
  3. 2020 Porsche 718 Cayman
    $129,990
    2020 Porsche 718 Cayman GT4
    11,793 mi · Troutdale, OR · Diplomat Motors
    View listing →
  4. 2020 Porsche 718 Cayman
    $129,995
    2020 Porsche 718 Cayman GT4
    4,559 mi · Redford, MI · michael-s2
    View listing →
  5. 2020 Porsche 718 Cayman
    $132,546
    2020 Porsche 718 Cayman GT4
    15,205 mi · Buford, GA · Porsche Atlanta Northeast
    View listing →
  6. $133,990
    2020 Porsche 718 Cayman GT4
    16,900 mi · Carrollton, TX · One Legacy Motors
    View listing →
  7. $134,565
    2020 Porsche 718 Cayman GT4
    14,119 mi · Kansas City, MO · Mercedes-Benz of Kansas City
    View listing →
  8. $135,594
    2020 Porsche 718 Cayman GT4
    11,189 mi · Chillicothe, MO · Max Curnow Chevrolet GMC
    View listing →
  9. 2020 Porsche 718 Cayman
    $137,998
    2020 Porsche 718 Cayman GT4
    17,020 mi · Carrollton, TX · Earth MotorCars
    View listing →
  10. 2020 Porsche 718 Cayman
    $137,999
    2020 Porsche 718 Cayman GT4
    9,933 mi · Costa Mesa, CA · OBZU
    View listing →

These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2020 Porsche 718 Cayman asks $133,629–$148,553. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.

FAQ

How much does a used 2020 Porsche 718 Cayman cost?

A used 2020 Porsche 718 Cayman in the US typically lists for $133,629 to $148,553, with a median asking price of $138,949 across 20 active US dealer listings. Nine in ten are priced between $119,461 and $175,791 (as of 2026-10-17, source: UnderMarket Cars).

Is $139,000 a good price for a used 2020 Porsche 718 Cayman?

That sits at about the market median ($138,949) for a used 2020 Porsche 718 Cayman. Under $133,629 puts you in the cheapest quarter of active US listings and under $119,461 in the cheapest 5%; above $175,791 is the priciest 5% (as of 2026-10-17).

What is the cheapest used 2020 Porsche 718 Cayman for sale right now?

$67,991 — a 2020 Porsche 718 Cayman S GTS in Scottsdale, AZ, $70,958 under the median (as of 2026-10-17).

Are these MSRP or real asking prices?

Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.

How often are prices updated?

The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2020 Porsche 718 Cayman page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.

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Prices updated 2026-10-17. Data covers active dealer listings across the USA.