Skip advert
Advertisement

Kia Rio 1.4 CRDi

Is the big-capacity diesel the best version of new Rio supermini?

Find your Kia Rio
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

How do you pick between the different versions of Kia’s new Rio? For low-mileage users, the 1.25-litre petrol will make most sense. Buyers focused on fuel bills should opt for the 1.1-litre diesel. But most others should consider this 1.4-litre diesel, with its usable pace and decent efficiency. The Ford Fiesta is a slightly better all-rounder, but the Rio is still a really good car.

Advertisement - Article continues below

Can the diesel version of Kia’s newest car topple the Ford Fiesta from its lofty pedestal? On paper, the signs look good – in 1.4-litre CRDi EcoDynamics guise driven here, it’s not only more powerful, but also more efficient that the equivalent Ford.

While the new three-cylinder 1.1-litre CRDi model is attracting headlines with its bargain price, 88mpg fuel consumption and 85g/km emissions, the 1.4-litre unit counters with more useful performance and superb efficiency by any normal standards. It returns 70.6mpg and emits 105g/km of CO2.

Video: watch CarBuyer's video review of the Kia Rio

[[{"type":"media","view_mode":"content_narrow","fid":"68694","attributes":{"alt":"","class":"media-image"}}]]

Of course, the Fiesta, named Best Supermini at our New Car Awards, also happens to be the best-selling car in Britain, so it’s a sign of Kia’s confidence that it is happy to pitch it into direct competition without relying solely on its value-for-money reputation.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

T-Roc

2021 Volkswagen

T-Roc

36,574 milesManualPetrol1.5L

Cash £14,923
View T-Roc
Countryman

2022 MINI

Countryman

66,467 milesAutomaticPetrol1.5L

Cash £15,300
View Countryman
Grandland

2022 Vauxhall

Grandland

29,665 milesManualPetrol1.2L

Cash £14,989
View Grandland
e-C4

2023 Citroen

e-C4

14,720 milesAutomaticElectric

Cash £13,014
View e-C4

The Rio’s bold new look is a good start. Yes, it borrows parts from the Toyota Yaris, Volkswagen Polo and SEAT Ibiza, but it is attractive and the Kia family nose is immediately recognisable.

Inside, the car is trimmed in top-quality materials with fit and finish comparable to cars in the class above. Other than a steering wheel shaped to match the front grille it’s not daring, but it is logically laid out.

Advertisement - Article continues below

There’s adequate space for five people, although the luggage capacity with the rear seats in place – at 288 litres – is only seven litres less than in the Fiesta.

Turn the key and the 1.4-litre turbodiesel engine fires up instantly, and without the clatter of Korean diesels of old. You won’t mistake it for a petrol unit, but it’s refined all the same.

It continues to impress on the move, and even if you push the engine to the red line it never becomes intrusive. You shouldn’t need to do that, though. Unlike its petrol-fuelled siblings, this Rio has plenty of torque to play with, so it’s more enjoyable to drive and is happy to cruise at low revs.

The lesser models require frequent gearchanges and can struggle on hilly roads, but the 1.4 CRDi unit pushes the Rio on with verve, belying its modest 89bhp. The slick six-speed manual gearbox is perfectly suited to it, too, with a long last ratio for motorway driving, but shorter gears lower down to make the most of the available performance.

While the keen driver will still opt for the Fiesta, the Rio compares well. Body control is good, with no unwanted pitching, diving or rolling, and the suspension deals with bumps in a mature manner.

The steering isn’t the most engaging when you turn into a corner, but this won’t be a priority for most buyers and the light action will be a huge benefit around town.

Value for money is important in this sector, and unfortunately that’s where this particular Rio falls down. It’s more expensive than the less powerful 69bhp 1.4-litre diesel Fiesta for instance. However, it’s well equipped and an ace up Kia’s sleeve is the seven-year warranty.

Why should you buy the 1.4 CRDi version? Well, it’s much more satisfying to drive than both the entry-level 1.25-litre petrol model and impressively frugal 1.1-litre diesel, while it returns decent economy by any measure. It will also deal with a full load of people and luggage more effectively.

Does it beat the Fiesta? In some respects it’s a more appealing buy, but as we revealed in our supermini group test in Issue 1,182, where the Rio came second, it’s the Fiesta that still holds the crown.

Skip advert
Advertisement

New & used car deals

Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £2,073 off RRP*Used from £7,495
Kia Sportage

Kia Sportage

RRP £28,065Avg. savings £4,599 off RRP*Used from £12,495
Renault Clio

Renault Clio

RRP £16,160Avg. savings £4,179 off RRP*Used from £6,595
Vauxhall Corsa

Vauxhall Corsa

RRP £19,690Avg. savings £5,547 off RRP*Used from £11,499
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Jaecoo and Omoda announce ‘tax rebate’ to counter pay-per-mile tax
Omoda E5 and Jaecoo E5

Jaecoo and Omoda announce ‘tax rebate’ to counter pay-per-mile tax

Not a fan of the Government’s 3p per mile road tax proposal for electric cars? Omoda and Jaecoo are already offering discounts they’re promoting as ‘t…
News
26 Nov 2025
Motability’s definition of a ‘premium’ car is outdated, and here’s why
Tom Motability opinion

Motability’s definition of a ‘premium’ car is outdated, and here’s why

Our consumer reporter believes Motability needs to get with the times and reasses what it classifies as a premium car
Opinion
28 Nov 2025
Autumn Budget 2025 revealed: fuel duty, road pricing, tax and potholes
Parliament

Autumn Budget 2025 revealed: fuel duty, road pricing, tax and potholes

Rachel Reeves has unveiled her financial plans for 2026 and beyond; we explain how they will affect drivers
News
28 Nov 2025