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Fiat 124 Spider Fuel Economy (MPG)

What is the real-world gas mileage of a 2020 Fiat 124 Spider?

The 2020 Fiat 124 Spider gets up to 30 MPG combined (26 city / 35 highway) in EPA testing.

Latest model year (2020):

The Fiat 124 Spider gets up to 30 MPG combined (26 city / 35 highway) in the Man 6-spd, 4 cyl, 1.4 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsCurb Weight

Fiat 124 Spider MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2020Config 1 of 2Auto 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline253629
2020Config 2 of 2Man 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline263530
2019Config 1 of 2Auto 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline253629
2019Config 2 of 2Man 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline263530
2018Config 1 of 2Auto 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline253629
2018Config 2 of 2Man 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline263530
2017Config 1 of 2Auto 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline253629
2017Config 2 of 2Man 6-spd, 4 cyl, 1.4 L4 1.4LPremium Gasoline263530

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Fiat 124 Spider data analysis

How Fiat 124 Spider combined fuel economy varies

Across 8 configurations recorded for the 2017 through 2020 Fiat 124 Spider, combined fuel economy runs from 29 MPG to 30 MPG. The strongest figure belongs to the 2017 Fiat 124 Spider (Man 6-spd, 4 cyl, 1.4 L) at 30 MPG, and the weakest to the 2020 car (Auto 6-spd, 4 cyl, 1.4 L) at 29 MPG — a spread of 3%. The narrow spread means any year of the Fiat 124 Spider in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2020

Average combined fuel economy for the 2020 Fiat 124 Spider is 29.5 MPG, against 29.5 MPG for the 2019 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Fiat 124 Spider data

This page lists every 2017 through 2020 Fiat 124 Spider record we hold for this measurement — 8 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Fiat 124 Spider numbers

The 2017 through 2020 Fiat 124 Spider entries here cover the variants Auto 6-spd, 4 cyl, 1.4 L and Man 6-spd, 4 cyl, 1.4 L. 2020 is the busiest model year in the record with 2 separate measured configurations, which is why a single quoted combined fuel economy figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Fiat 124 Spider figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Fiat 124 Spider record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speedEPA highway specAutoSpecData adjusted MPGFuel you lose
60 mph36 MPG36 MPG0%
65 mph36 MPG33.6 MPG7%
70 mph36 MPG31.3 MPG13%
75 mph36 MPG29.1 MPG19%
80 mph36 MPG27.1 MPG25%

Our Real-World Speed MPG Adjuster re-scales the Fiat 124 Spider EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About 124 Spider MPG

What is the MPG of the Fiat 124 Spider?

The Fiat 124 Spider gets up to 30 MPG combined (26 city / 35 highway) in the 2020 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Fiat 124 Spider trim has the best fuel economy?

The Man 6-spd, 4 cyl, 1.4 L trim offers the best combined fuel economy at 30 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

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