In-depth Reviews

Hyundai Ioniq Hybrid - MPG, running costs & CO2

Hyundai Ioniq running costs should be close to those of the Toyota Prius

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MPG, running costs & CO2 Rating

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One of the Ioniq's key selling points is the fact that the entry-level Hybrid version costs significantly less to buy than the equivalent Toyota Prius. This should help make up for the fact that the Ioniq Hybrid can’t quite match the Toyota’s fuel economy and CO2 emissions figures. The Ioniq Electric, meanwhile, has the extremely low running costs we’ve come to expect from electric vehicles, however these are offset by a relatively high list price, and you’ll need to undertake battery charging using its charging cable.

Hyundai Ioniq MPG & CO2

Opting for the lower trim levels gets you 15-inch alloy wheels with a CO2 emissions figure of 84g/km. Speccing the higher trim levels adds 17-inch alloy wheels increasing the CO2 emissions to 85g/km. These emission figures are a tiny bit behind the Prius, and the Ioniq isn't quite as fuel-efficient, either: the Prius manages up to 67.2mpg, a little ahead of the Ioniq's maximum of 62.8mpg.

All trim level models of the Ioniq Hybrid sit in a low Benefit-In-Kind (BiK) banding, matching the hybrid versions of the Prius. VED road tax costs £140 a year - £10 less than petrol or diesel models.

The Ioniq’s ‘ECO-DAS’ (Eco Driving Assistant System) can calculate the most efficient navigation routes based on prevailing traffic and encourages coasting by giving prior warning of changes in speed limits or road conditions.

Insurance group

The Ioniq should be affordable to insure, with SE and Premium versions in group 10 and the Premium SE model one group higher. This is lower than the Prius in group 14 or the Kia Niro in groups 12 to 14.


The Ioniq gets the same five-year/unlimited-mileage warranty as other Hyundai models, with the battery covered for eight years/125,000 miles. This is the same amount of cover offered with the Prius, while the Niro comes with a seven-year warranty.


Hyundai servicing is usually quite affordable, especially if you take up the Hyundai Sense servicing plan available when the car is new. This covers the first two years of maintenance for £350 or three years for £500. You can even opt for five years of maintenance for £899, so you’ll be able to budget costs well into the future.

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