2018 Fiat 500X — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2018 Fiat 500X is an SUV powered by a 1.4L 4-cyl turbo premium gasoline engine. It returns around 34 mpg (UK) / 28 mpg (US EPA) combined. Owners often keep a Fiat 500X workshop manual to hand for servicing and repairs.
Compared with the 2017 Fiat 500X: Fuel economy is essentially unchanged at around 34 mpg (UK) combined.
Full Specifications
| Engine | 1.4L 4-cyl turbo |
|---|---|
| Transmission | Manual 6-spd |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | SUV |
| Fuel Economy (UK) | 34 combined / 30 urban / 40 extra-urban mpg |
| Fuel Economy (US EPA) | 28 combined / 25 city / 33 highway mpg |
| CO₂ Emissions | 197 g/km |
| EPA Est. Annual Fuel Cost | $2,950 (15,000 mi/yr, US prices) |
Owner Essentials for the 2018 Fiat 500X
Running Costs: 2018 Fiat 500X
Covering around 8,000 miles a year in a 2018 Fiat 500X at 34 mpg combined, expect roughly 1,070 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,950 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.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2018 Fiat 500X 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.
How It Compares
How does the Fiat 500X compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 34 mpg figure is 7 mpg better than that average. Its 197 g/km CO₂ figure is 56 g/km lower than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
At 34 mpg (UK) combined it sits close to the 35 mpg average for Fiat models in our database.
Of the 8 Fiat 500X model years we cover, the 2018 is the most economical on its best configuration (34 mpg UK combined). See every Fiat 500X 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.
Recommended Accessories for the 2018 Fiat 500X
Frequently Asked Questions
What engine does the 2018 Fiat 500X have?
It's fitted with a 1.4L 4-cyl turbo premium gasoline engine, paired with a manual 6-spd transmission.
What is the fuel economy of the 2018 Fiat 500X?
The most efficient configuration returns around 34 mpg (UK) combined, or 28 mpg on the US EPA cycle.
How much does the 2018 Fiat 500X cost to fuel per year?
The US EPA estimates about $2,950 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.
Is the Fiat 500X's fuel economy good for an SUV?
Yes — it returns around 34 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track, making it one of the more efficient options in its class.