In-depth reviews

Kia Stonic SUV - MPG, running costs & CO2

Kia Stonic running costs are reasonable but not class-leading

Carbuyer Rating

3.6 out of 5

Owners Rating

5.0 out of 5

Read owner reviews

Stonic buyers are now limited to just two versions of the same 1.0-litre petrol engine, so there's very little choice. Both manage reasonable economy - the engines roughly match the equivalent engines in the Skoda Kamiq - but a diesel Peugeot 2008 is noticeably more economical than any Stonic.

While both versions of the petrol engine offer decent efficiency, Kia is missing a trick by not offering a hybrid or even plug-in hybrid version, like it does with the Kia Niro. Alternative fuel rivals include the Renault Captur E-Tense plug-in hybrid and Toyota C-HR hybrid, which are likely to hold more appeal for company-car drivers due to their low CO2 emissions.

Kia Stonic MPG & CO2

The previous entry-level 1.4-litre petrol engine has been retired, replaced by the cleaner and more efficient 1.0-litre turbo petrol. In 99bhp guise, it has official figures of up to 49.6mpg and CO2 emissions of 129-130g/km, placing it in a midrange Benefit-in-Kind (BiK) band. 

Thanks to its mild-hybrid technology, the more potent 118bhp version is even more economical, returning up to 51.4mpg, with emissions of 125-129g/km. Its 48-volt mild hybrid system recovers energy that would usually be wasted while decelerating, storing it in a small battery to assist the engine under acceleration.

More reviews

In-depth reviews

Previously, a diesel 1.6-litre CRDi engine was available, and capable of 56.5mpg with CO2 emissions of 130g/km, but this has now been phased out.

The entry-level 1.0-litre Stonic is liable for the standard VED (road tax) rate after the first year, while the more powerful mild-hybrid engine qualifies for the discounted VED rate as it’s classed as an ‘alternative fuel vehicle’ (AFV).

Insurance group

Kia benefits from relatively low insurance groups, giving its cars some extra appeal for younger drivers. The Stonic is rated in groups 11-14 depending on exact specification, while the Renault Captur occupies groups 8-19 and the Stonic compares favourably with the Peugeot 2008 in groups 13-23.

Warranty

Kia is one of the best manufacturers in the business when it comes to the warranty offered with its new cars. The Stonic is covered for seven years/100,000 miles, offering buyers great peace of mind.

Servicing

Kia servicing costs are reasonable. Petrol Stonics need a service every 10,000 miles or 12 months, with diesels needing attention every 20,000 miles or 12 months.

Kia offers a ‘Care-3’ service pack that costs £300 and covers you for the first three services. For an extra £30, you can get the car’s first MOT included, and for £600 you can cover the cost of the car’s first five services.

Recommended

Kia Stonic SUV review
Kia Stonic SUV
Kia Stonic
24 Mar 2021

Kia Stonic SUV review

Most Popular

Top 10 best cheap-to-run cars 2022
Toyota Prius front 3/4 cornering
Best cars
17 Jan 2022

Top 10 best cheap-to-run cars 2022

UK road tax 2022: VED tax rates and bands explained
2021 Road Tax explained
Car tax
20 Jan 2022

UK road tax 2022: VED tax rates and bands explained

Top 10 best economical 4x4s, SUVs and crossovers 2022
Peugeot 3008 SUV front cornering
Best cars
6 Jan 2022

Top 10 best economical 4x4s, SUVs and crossovers 2022

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
10 Aug 2021

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Electric car charging station
Tips and advice
5 Nov 2021

Electric car charging stations: a complete guide

PCP vs HP – which type of car finance is right for you?
PCP vs HP
Car buying
21 Jan 2022

PCP vs HP – which type of car finance is right for you?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
23 Jul 2021

Average speed cameras: how do they work?

Best cars

View All
Top 10 best car interiors 2022
Peugeot 208 hatchback
Best cars
25 Jun 2021

Top 10 best car interiors 2022

Top 10 best electric cars 2022
Ioniq 5
Best cars
19 Jan 2022

Top 10 best electric cars 2022

Top 10 best cheap-to-run cars 2022
Toyota Prius front 3/4 cornering
Best cars
17 Jan 2022

Top 10 best cheap-to-run cars 2022

The UK's top 10 fastest hot hatchbacks 2022
Audi RS 3 driving - front view
Hot hatches
21 Jan 2022

The UK's top 10 fastest hot hatchbacks 2022