Fiat Vehicle Models & Specifications
5 models with verified fuel economy and engine specifications
124 Spider
2017–2020 · 8 variants
500
2015–2023 · 33 variants
500 L
2015–2018 · 7 variants
500 X
2016–2018 · 9 variants
500e
2015–2026 · 11 variants
Fiat data pages by model
Jump straight to service intervals and specification data for any Fiat model.
- 124 Spider maintenance schedule · engine specs
- 500 maintenance schedule · engine specs
- 500 L maintenance schedule · drivetrain
- 500 X maintenance schedule · drivetrain
- 500e maintenance schedule · electric range
About Fiat specifications on AutoSpecData
This hub indexes every Fiat model line we hold verified data for — 5 nameplates covering 68 distinct trim and powertrain combinations across model years 2015 to 2026. That works out to roughly 14 variants per model line, which is why picking the exact year and engine matters when you compare fuel economy: two Fiat vehicles wearing the same badge in the same year can differ by several MPG depending on drivetrain and transmission.
The deepest Fiat coverage sits with the 500 (33 variants, 2015–2023), the 500e (11 variants, 2015–2026) and the 500 X (9 variants, 2016–2018). 1 Fiat model is still current as of 2026, while 4 lines have been discontinued or renamed — those stay published because used buyers and owners still look up their MPG, engine, and service data.
Every Fiat model page below breaks its data into five focused views: fuel economy (EPA city, highway, and combined MPG plus estimated annual fuel cost), engine specifications (displacement, cylinder count, fuel type, and forced induction where applicable), transmission, drivetrain, and vehicle class. Where a Fiat model is rated for towing or has published bed and cargo dimensions, those figures appear on the model page too. Figures come from the EPA and Department of Energy fueleconomy.gov datasets and are cross-checked against NHTSA vPIC records; blank fields mean the source data does not publish that value for that trim, not that the value is zero.
If you are cross-shopping, start with the model you already have in mind, note the combined MPG for the specific year and drivetrain, then use the comparison tool to put it side by side against a rival. Annual fuel cost is usually the number that separates two otherwise similar Fiat trims over a five-year ownership window.
Fiat specs: common questions
How many Fiat models are covered here?
5 Fiat model lines are covered, spanning 68 individual trim and powertrain combinations from model years 2015 through 2026. Each model page breaks those trims out year by year with EPA city, highway, and combined MPG, engine displacement, cylinder count, transmission, and drivetrain.
Which Fiat model has the most trim data?
The Fiat 500 has the deepest coverage with 33 recorded variants between 2015 and 2023. Model lines with more variants usually offered several engines, drivetrains, or transmission choices in the same year, so comparing trims within a single year matters more than comparing across years.
What model years of Fiat vehicles are included?
Coverage runs from 2015 to 2026. The longest-running entry is the Fiat 500 (from 2015), and the most recently updated is the Fiat 500e (through 2026). Older years are included because used-car shoppers and owners looking up maintenance intervals need them as much as new-car buyers do.
Where does the Fiat data come from?
Fuel economy, engine, transmission, drivetrain, and vehicle-class fields come from the US EPA and Department of Energy fueleconomy.gov datasets, with vehicle identification cross-checked against the NHTSA vPIC database. Nothing is estimated by us: if a figure is missing for a given Fiat trim, the field is left blank rather than filled with a guess.
Are these Fiat MPG figures real-world numbers?
They are EPA laboratory test ratings, which is the same standard used on the window sticker. Real-world results for a Fiat typically land within about 10-15% of the combined rating, and drop further in cold weather, in stop-and-go traffic, at sustained highway speeds above 70 mph, or when towing.