2021 Porsche 718 — Full Specifications

Reviewed by the 247VehicleCheck Data Team — automotive data reviewers

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29Best Combined MPG (UK)
2L 4-cyl turboMost Efficient Engine
Premium GasolineFuel Type
$3,400Est. Annual Fuel (US EPA)
N/ANHTSA Safety
233CO₂ g/km

The 2021 Porsche 718 is a coupe offered with 3 engines (2L 4-cyl turbo, 2.5L 4-cyl turbo, 4L 6-cyl). Its most fuel-efficient configuration returns around 29 mpg (UK) / 24 mpg (US EPA) combined, with 23–29 mpg (UK) across all configurations. Owners often keep a Porsche 718 workshop manual to hand for servicing and repairs.

Compared with the 2020 Porsche 718: Fuel economy improves from 23 to 29 mpg (UK) combined on the most efficient configuration. EPA lists new engine options for 2021: 2L 4-cyl turbo, 2.5L 4-cyl turbo.

Full Specifications

Engine (most efficient)2L 4-cyl turbo
Engine options2L 4-cyl turbo · 2.5L 4-cyl turbo · 4L 6-cyl
Transmission (most efficient)Automatic (AM-S7)
Fuel TypePremium Gasoline
PowertrainConventional
DriveRear-Wheel Drive
Body StyleCoupe
Fuel Economy (UK)29 combined / 25 urban / 32 extra-urban mpg
Fuel Economy (US EPA)24 combined / 21 city / 27 highway mpg
CO₂ Emissions233 g/km
EPA Greenhouse Gas Score4 / 10 (10 = lowest emissions)
EPA Est. Annual Fuel Cost$3,400 (15,000 mi/yr, US prices)

Engine & Transmission Options

EPA lists 6 configurations for the 2021 Porsche 718 across 3 engines (2L 4-cyl turbo, 2.5L 4-cyl turbo, 4L 6-cyl). Combined fuel economy ranges from 19 to 24 mpg (US), or 23 to 29 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.

EngineTransmissionDriveMPG (UK)MPG (US)CO₂ g/kmFuel cost / yr
2L 4-cyl turboAutomatic (AM-S7)Rear-Wheel Drive 29 24 (21/27) 233$3,400
2L 4-cyl turboManual 6-spdRear-Wheel Drive 26 22 (20/26) 245$3,750
2.5L 4-cyl turboAutomatic (AM-S7)Rear-Wheel Drive 26 22 (19/25) 255$3,750
2.5L 4-cyl turboManual 6-spdRear-Wheel Drive 25 21 (19/24) 263$3,900
4L 6-cylAutomatic (AM-S7)Rear-Wheel Drive 25 21 (19/24) 260$3,900
4L 6-cylManual 6-spdRear-Wheel Drive 23 19 (17/24) 285$4,350

MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.

Owner Essentials for the 2021 Porsche 718

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Running Costs: 2021 Porsche 718

Covering around 8,000 miles a year in a 2021 Porsche 718 at 29 mpg combined, expect roughly 1,254 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,400 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.

Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.

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2021 Porsche 718 Safety Ratings (NHTSA)

No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.

Recalls & Owner Complaints (NHTSA)

NHTSA lists no safety recall campaigns for the 2021 Porsche 718 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.

Owners have filed 4 complaints with NHTSA about the 2021 Porsche 718. The most-reported areas are Engine (2), Seat belts (1), Back over prevention (1).

Used-buyer checklist for the 2021 Porsche 718

Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:

Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.

How It Compares

How does the Porsche 718 compare to similar coupes? For context, coupes in our database average around 25 mpg (UK) combined — this model's 29 mpg figure is 4 mpg better than that average. Its 233 g/km CO₂ figure is 45 g/km lower than the 278 g/km average for coupes on this site. This comparison is based on 1072 coupes in our dataset.

Porsche models in our database average about 26 mpg (UK) combined on their most efficient configuration; the 2021 Porsche 718's 29 mpg is 3 mpg above that make average. Its 233 g/km CO₂ figure is 21 g/km lower than the 254 g/km Porsche average.

Of the 6 Porsche 718 model years we cover, the 2021 is the most economical on its best configuration (29 mpg UK combined). See every Porsche 718 year side by side.

Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026

Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.

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Frequently Asked Questions

What engine does the 2021 Porsche 718 have?

EPA lists 3 engines for the 2021 Porsche 718: 2L 4-cyl turbo, 2.5L 4-cyl turbo, 4L 6-cyl. The most fuel-efficient configuration pairs the 2L 4-cyl turbo with a automatic (am-s7).

What is the fuel economy of the 2021 Porsche 718?

The most efficient configuration returns around 29 mpg (UK) combined, or 24 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 23 to 29 mpg.

How much does the 2021 Porsche 718 cost to fuel per year?

The US EPA estimates about $3,400 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.

Does the 2021 Porsche 718 have any recalls?

NHTSA lists no safety recall campaigns for the 2021 Porsche 718 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.

What are the most common problems reported for the 2021 Porsche 718?

Among the 4 owner complaints filed with NHTSA, the most-reported areas are Engine (2 complaints), Seat belts (1 complaint), Back over prevention (1 complaint). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.

Is the Porsche 718's fuel economy good for a coupe?

Yes — it returns around 29 mpg (UK) combined, against a same-body-style average of roughly 25 mpg among the coupes we track, making it one of the more efficient options in its class.

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