Model year guide

2020 Porsche 718 Cayman GT4

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2020 Porsche 718 Cayman GT4 is worth — from official NHTSA and EPA data. 1 on record.

2020 Porsche 718 Cayman GT4 — representative photo
Representative photo

2020 Porsche 718 Cayman GT4 at a glance

Safety recallsNone
Combined19 mpg

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2020 Porsche 718 Cayman GT4 recalls 0

No NHTSA safety-recall campaigns are on record for the 2020 Porsche 718 Cayman GT4.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2020 Porsche 718 Cayman GT4 MPG & running costs

Combined19 mpg
City16 mpg
Highway23 mpg
Est. annual fuel cost$4,350
EPA size classTwo Seaters
TransmissionManual 6-spd
5-yr fuel cost vs average new car$9,750 more

Source: U.S. EPA / DOE fueleconomy.gov.

Estimated 5-year cost to own

A rough guide to what running a 2020 Porsche 718 Cayman GT4 costs over five years and 75,000 miles.

Fuel (5 yrs)$21,750
Fuel only$21,750
Per mile$0.29

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Investigations & service bulletins

Manufacturer service bulletins 479

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 479.

Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are allocated.

Bulletin No. 28-26 · Power Train, Engine · Sep 2026

Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.

Bulletin No. 27-26 · Power Train, Engine · Sep 2026

Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are allocated.

Bulletin No. 26-26 · Power Train, Engine · Sep 2026

Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils. Note that this bulletin covers all vehicles from model year 1997 to 2020, for which A40 engine oils are assigned. Model years 1997-2001 are not available for selection in the system.

Bulletin No. 25-26 · Power Train, Engine · Sep 2026

Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available

Bulletin SPTL2609 · Steering, Suspension, Wheels · Sep 2026

Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment

Bulletin No. 12-26 · Electrical System · Sep 2026

Special Tools and Equipment Information for Diagnostic Equipment Standards for all USA Porsche Centers

Bulletin SPTL2314a · Aug 2026

Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available

Bulletin SPTL2608 · Steering, Suspension, Wheels · Aug 2026

Product Knowledge for Model Type Designations

Bulletin GR16D8a · Aug 2026

Product Knowledge for Chassis/VIN Numbering Systems

Bulletin GR16D8 · Aug 2026

Source: NHTSA Office of Defects Investigation, listed for the 718 CAYMAN GT4 RWD. Model-year data, not specific to one car.

About the Porsche 718 Cayman GT4

The Porsche 982 is the internal designation of the fourth generation Boxster/Cayman made by German automobile manufacturer Porsche. With the switch to a new turbocharged flat-four engine the marketing name for the models was changed to Porsche 718, in reference to the 718, which won the Targa Florio race in 1959 and 1960. The name is meant to evoke Porsche's past racing successes with light cars like the 718 that outmaneuvered competitors with larger and more powerful engines.

From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.

2020 Porsche 718 Cayman GT4 vehicles on record

Other Porsche 718 Cayman GT4 model years

2020 Porsche 718 Cayman GT4 — frequently asked questions

Does the 2020 Porsche 718 Cayman GT4 have any safety recalls?

NHTSA lists no safety-recall campaigns for the 2020 Porsche 718 Cayman GT4. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What gas mileage does the 2020 Porsche 718 Cayman GT4 get?

The 2020 Porsche 718 Cayman GT4 has a U.S. EPA estimate of 19 mpg combined (16 city / 23 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.