Kia Optima vs Ford Fiesta

What's the difference?

If you travel long distances, want a good amount of space and don’t want to pay big bucks for a new car, then yeah, maybe there is a reason sedans like this will hang around for a while longer.

Sure, the appeal of sedans mightn’t be as strong as it once was, but models like the Kia Optima prove they still have a reason to exist.

The Fiesta ST is an addictive car to drive. It's a modern classic and hard to beat when it comes to engaging performance and smile-inducing dynamics. Add in excellent value for money and you have a certified performance car bargain. 

Cosmetic changes for the facelifted 2018 Kia Optima include new headlights and tail-lights with revised LED signatures (but still halogen lamps in the base model), and there are newly sculpted bumpers and new wheel designs across the two-model range. 

We had the base model Si, which doesn’t look as good as the GT model, because it has smaller wheels, the sporty body kit and misses out on the LED headlights, but the LED daytime running lights are still present.

The GT has a more aggressive look, and the side skirts, front spoiler and rear diffuser fit it better - there are dual exhausts, but not sporty quad exhaust tips.

In fact, this model is a bit like the old-man version of the Optima. No offence intended to old men, of course. The GT is just heaps sportier, and I reckon it’s considerably more attractive as a result. 

Still, the inherent sleek styling of the Optima remains - the chrome highlighting along the window line is a bit too sheeny for me, but the angles and stance of this model are quite gracious. I really dig the fact the top of the windscreen mirrors the ‘Tiger Nose’ grille shape.

I'm no exterior designer, but I liked the existing Optima more - it just looked a bit neater, even though it had a decent amount of bling with its Mercedes-like diamond-pattern grille, as opposed to the cheese grater look seen here.

There’s not quite as much bling inside the cabin of the Si, either, but it is still a well-designed space - just not as special as the premium package offering of the GT (which gets leather trim - not nappa leather, but still a quality cowhide finish, and more). Check out our interior photos to see if you agree - but size and interior dimensions of the Optima are hard to argue against.

The styling changes ushered in by the 2022 update are subtle. The Fiesta ST gains a revised front fascia with LED Matrix headlights, a larger grille with a repositioned Ford badge, and restyled bonnet and bumper. 

It gets a fresh 18-inch alloy wheel design and black tail-light surrounds at the rear. It also comes in two new exterior paint colours - 'Mean Green' and the 'Boundless Blue' of our test car.

The current-generation Fiesta ST has an appealing design that represents a clear evolution of its predecessor, and, arguably, it didn’t need much work this time around.

The ST’s sporty bodykit adds a touch of aggression but not in a boy racer sort of way. It’s a classic hatchback design with a bit of an edge. 

I really like the way Kia designs its cabins. Sure, there’s a lot of black in here, but there’s also a lot of thought put into the usability of the space.  

The high-mounted 7.0-inch infotainment and multimedia touch screen in the Si is simple to use, and for 2018 the Optima range gets Apple CarPlay and Android Auto - you couldn’t get that in the Optima up to this point. 

Also included are a reversing camera, USB input, Bluetooth phone and audio streaming and six speakers. The Si model misses out on sat nav - you’ll have to use the maps app on your phone. No DVD player either.

Storage is well thought out in here, with big bottle holders in the doors, a good sized pair of cup holders up front, and a nice little storage bin for your phone, wallet, keys and so on.

There’s a driver info screen with a digital speedo, and even on this base model you get a dual-zone climate control air conditioner. The updated Optima gets a new steering wheel, too.

Now, what about the back seat?

It may be considered a ‘mid-sized’ sedan, but there’s limo-like space. With the driver’s seat in my position (I’m about six feet tall) there was still heaps of rear legroom in the rear seat, with ample knee room, good foot room and decent shoulder space, too - three of me could slot across the back bench comfortably, which means kids will fit easily, too. There are three top-tether points and two ISOFIX points as well.

Kids and adults alike will be happy with the rear air vents back here, and there’s a flip down armrest with cupholders, too. Again, big bottle holders appear in the doors, and there are map pockets in the back seats.

What about boot space? With so many people choosing SUVs over sedans because they’re theoretically more practical, the Optima offers good food for thought - it has enough luggage capacity for a bunch of suitcases (510 litres VDA in size) and there’s a full-size alloy spare under the boot floor. If you need more, you could always invest in a roof rack setup?

As part of the update, the Fiesta ST gains new Recaro front sports seats that are firm and hug the body tightly. You feel well supported when cornering. The mix of synthetic leather and suede looks spot-on.

Like a number of sports-focused models, the ST features red stitching throughout the cabin - on the steering wheel, gearbox gaiter and air vent surrounds - and while it’s ubiquitous, it’s still a nice touch.

The chunky perforated leather steering wheel feels nice to touch, as does the metal gear knob. 

Cabin materials are a mix of soft-touch and hard plastics, and there’s carbon-fibre-look inserts on the dash.

There’s no denying Ford’s dash design is a huge improvement over the previous-generation Fiesta that ran from 2009, but the current model still lacks the polish of the VW Polo. It’s about on par with the Hyundai i20 N, although the Ford’s layout is a little busier.

In saying that, it’s hard to fault the cabin’s functionality. It has a deep central storage bin, which is larger than most cars in this category, a decent sized glove box, two-and-a-half cupholders in the centre console and storage for narrow bottles in the doors.

There’s a wireless charging dock behind the gear shifter, two USB ports (one in the storage bin and one next to the charger), as well as a 12-volt charger.

It’s nice to see the ST still has a manual park brake, too.

The facelift introduced a 12.3-inch fully digital instrument cluster, and while some may lament the loss of analogue dials, it’s nice to see Ford taking the opportunity to improve the tech.

The multimedia is housed in a smallish 8.0-inch digital screen sitting atop the centre stack and it runs Ford’s Sync 3 system. 

Sync 3 functions well, is hard to fault and the menu layout is easy to navigate, but it is being left behind by competitors with more modern and appealing graphics. The latest version in the new Ranger will no doubt be a major improvement, but we won’t be seeing it in this generation of Fiesta.

The diminutive size of the Fiesta ST is more apparent when sitting in the rear seats. It’s pretty tight behind my 183cm (6ft) driving position, with my knees hitting the rear of the front seats. 

It’s a cramped space that’s not designed for long trips by adults. It has redundant tiny rear-side windows behind the C-pillar, but on the plus side, there’s acres of headroom. 

It lacks rear-seat air vents and the closest USB port is in the front centre storage compartment. Taller bottles won’t fit in the doors and it lacks a centre fold-down armrest, but it has map pockets.

The rear seats are flat and the Fiesta has outboard ISOFIX points for child seats.

Realistically, most people buying a car like this aren’t using it to haul children around so think of it as a two-seater with handy rear-seat storage.

The rear seats fold 60/40 but not flat. A space-saver spare wheel lives under the boot floor and it has a high boot lip, meaning you have to lift items up and over to get them in. 

At 311 litres, it’s a decent sized boot with usable space. It’s just one litre more than the Hyundai i20 N, and six litres more than the Polo GTI.

As far as mid-life updates go, the Fiesta ST’s isn’t significant. But the additions bring with it a bump in price. At $34,490, before on-road costs, it is $1200 more expensive than the previous version.

It still represents good value and is only $500 more than its newest rival, the Hyundai i20 N ($32,990 BOC). It’s quite a bit cheaper than the other big gun in the light hot hatch battle, the Volkswagen Polo GTI ($38,750 BOC).

Another offering in this group is the Suzuki Swift Sport which is the price leader, starting from $27,990 BOC.

Ford has specified a lot of standard gear for the price, including some niceties you don’t even get in pricier premium European cars.

It comes with a leather-wrapped heated steering wheel, heated front seats, Recaro sports seats, an auto-dimming rear-view mirror, heated power door mirrors, an 8.0-inch touchscreen with digital radio, satellite navigation, 'Sync 3' multimedia with voice control and Apple CarPlay/Android Auto, and a 10-speaker audio system.

As with the pre-update model, the German-built ST is the only Fiesta variant available in Australia.

The Si model is powered by a 2.4-litre four-cylinder petrol engine, which has seen no changes to its specifications for this mid-life update.

Engine specs remain at 138kW of power at 6000rpm, while torque is rated at 241Nm at 4000rpm. It makes use of a six-speed automatic transmission only - there’s no manual transmission here, but you do get paddle shifters - and it's front wheel drive (the Optima isn't available with AWD, or as a 4x4, or in rear wheel drive - the latter is left to its bigger brother, the Stinger).

The GT gets a zestier drivetrain with more horsepower - it has a 2.0-litre turbo four-cylinder engine with 180kW/350Nm, which is much more desirable, but also louder than the Si’s 2.4. It also has a six-speed auto transmission, and is FWD. If you're into ratings and statistics, that 2.0-litre with a turbocharger is one of the perkier offerings for its engine size in the class.

There is no hybrid model available, despite a plug in hybrid petrol version (allowing you to run in EV mode) being sold in European markets. No diesel here, either, while other markets get a 1.7-litre turbo diesel. No LPG model here, or anywhere else, for that matter.

Towing capacity for Optima models is 750kg unbraked and 1700kg braked for the 2.4-litre, and 700kg/1400kg for the 2.0-litre turbo. Tow bar down-weight is capped at 80kg.

If you're concerned about engine problems, suspension problems, clutch and transmission issues, be sure to check out our Kia Optima problems page.

Under the Fiesta’s cute bonnet is Ford’s 1.5-litre three-cylinder turbocharged petrol engine delivering 147kW at 6000rpm and 320Nm at 4000rpm - the latter is an increase of 30Nm over the pre-facelift model.

Interestingly, it now matches the power and torque outputs of the Polo GTI. The i20 N pumps out 150kW and 304Nm.

The engine is exclusively paired to a six-speed manual gearbox - there is no auto transmission available - and it is front-wheel drive.

Kia claims a very realistic fuel economy rating of 8.3 litres per 100 kilometres for the Si model, and we saw damn close to that consumption during our week of testing. On the highway it will sit at around 6.5L/100km, ensuring good mileage, while city driving will push usage above 12.0L/100km. Our overall average was 8.5L/100km, which is good. Use the eco mode, and you'll get a little better use.

The turbocharged GT model uses a little more, according to Kia’s 8.5L/100km combined average claim, but we guarantee you’ll actually use more than that because it’s more eager to please.

Fuel tank capacity is 70 litres - plenty of size for long distance drives.

Ford claims the Fiesta ST has an official combined cycle fuel use figure of 6.3 litres per 100 kilometres. 

After a week of predominantly inner city and freeway driving, we recorded a much higher 10.2L/100km. However, that was very shortly after an enthusiastic back-road blast to test its performance chops. We did see single-digit numbers throughout the week prior to that.

The Fiesta requires premium 95RON petrol and it has a 45-litre tank. CO2 emissions are 144g/km of CO2.

The Optima has some really good elements to the way it drives, but sadly  some less impressive bits as well.

Let’s start with the not-so-great stuff - the 2.4-litre engine in this Si model just isn’t as enjoyable as the turbo unit, and the fact that Kia still doesn’t offer a hybrid version here, despite doing so elsewhere, is a bit of a downer.

The drivetrain isn’t terrible - the six-speed auto is smart enough, and there’s usable power if you boot it. The two more sedate drive modes, 'Eco' and 'Comfort', mean the transmission will aim to save fuel and limit throttle response, with a bit more of a lazy feel to the drive experience. But in 'Sport' mode it is definitely more rewarding in terms of acceleration and performance, offering a bit more pep and urgency (we didn't do a 0-100 km/h speed test, but take our word for it); it undoubtedly at the cost of fuel consumption.

It’s just a bit of a shame Kia doesn’t offer the turbo in this spec, too. Fuel use for the Si model is better than the turbo, however, so it could be ideal for buyers who are more worried about the bottom line than design and a sportier drive.

The thing I like most about the Optima is its road manners - the steering and suspension have been tuned for local conditions, just like all Kia products, and it shows. 

The electric power steering is really well sorted, making for easy parking moves and good assuredness at higher speeds. And the turning circle is decent, too - 10.9m (so, the turning radius is 5.45m). 

Plus the ride comfort is really good. On the highway it coasts along with very little fuss, and around town it deals with lumps and bumps impressively. Sharp edges can upset things a tad, and mid-corner bumps can make it jitterbug a little bit, but not to a degree that would rule it out of contention if you want a mid-sized sedan.

It’s pretty quiet on the open road, too, and the adaptive cruise control makes long-distance driving a simple task. The GT does suffer a little bit more road noise, though.

It’s easy to find your ideal driving position in the Fiesta ST, thanks to the reach and height adjustable steering wheel and the adjustable seat.

Aside from the extra 30Nm dollop of torque, Ford hasn’t changed anything else about the Fiesta ST mechanicals for 2022, but arguably, it didn’t need to.

The pre-facelift model could cover 0-100km/h in 6.7 seconds, and while Ford has not revealed whether that has changed with the facelift, it feels about right.

It’s brisk from a standing start, without being neck-snappingly quick, but there is strong urge and a lack of noticeable turbo lag. There is, however, some axle tramp on take-off, particularly in the wet. We also detected some torque steer when pushing hard up a hill, but it was minimal. 

Speaking of, the little three-pot turbo engine is utterly unfazed by steep hills - it just keeps adding speed. A light kerb weight of 1218kg helps here. 

The three-pot turbo engine sounds wonderful when accelerating, and the Fiesta ST begs to be driven hard.

The engine is perfectly matched with the slick shifting six-speed manual gearbox that has lovely short throws and is a joy to use. Even if Ford offered an auto with the Fiesta ST, it would take away from the driving experience.

'Sport' mode ups the growl from the engine and throttle response, but it’s not a dramatic departure from 'Comfort' mode.

The ST’s strong brakes are bordering on sensitive, but the heavily weighted steering is incredibly sharp.

On a back road run, the front-wheel drive Fiesta ST comes alive, hugging corners confidently. 

On bends that would’ve seen many other cars come undone, the Fiesta’s tight, balanced chassis, grippy tyres and the standard mechanical limited slip differential ensure it maintains its composure.

The ride is undeniably firm, particularly around town in urban areas - you feel every speed bump. My partner found the ride a bit too much at times, but I was far more forgiving.

The Fiesta feels solidly built and has a level of refinement that’s missing from the likes of the Suzuki Swift Sport and Hyundai i20 N.

However, the cabin could do with more noise deadening materials as it can be quite rowdy at speed and on coarse chip roads. Another negative is the massive turning circle - a bit odd for a city-focused light hatchback.

But these are things I could happily live with. During my week with the Fiesta ST, I made any excuse to jump behind the wheel and go for a drive.

Me: “I’m just going to run to the shops to get pasta.”

My partner: “We’re not cooking pasta this week.”

Me: “Yeah but you never know when you need pasta. Bye!”

The Fiesta ST has not been tested by ANCAP for crash safety.

It comes with standard safety gear including auto emergency braking (AEB) with pedestrian detection, forward-collision warning, lane-keeping assist with lane-departure warning, speed-sign recognition, rear parking sensors and a reversing camera.

Given it’s a manual, it has old-school non-adaptive cruise control.

Kia remains a shining light in terms of its new-car-ownership promise, with a very strong seven-year/unlimited kilometre warranty. It makes a lot of sense if you plan to hang onto the car for a while. There's no extended warranty available, which is understandable.

That plan also includes a roadside-assist plan for the same seven-year period, provided you maintain your car with Kia Australia. So, given you get one year to start with, then you get an extra year of cover every time you go back to Kia to get your car serviced, you could end up with eight years of coverage. Nice!

Servicing is due every 12 months or 15,000km, with the first seven years covered by a capped-price-service cost / maintenance cost plan. The costs are: service one - $289; two - $466; three - $360; four - $559; five - $325; six - $599; seven - $345. That makes a total cost of $2943, which is competitive for its class. Keep your owners manual or logbook up to date, and your resale value should hold up better.

If you have concerns about common problems, issues, reliability ratings and durability, you should check out our Kia Optima problems page.

The Fiesta is covered by Ford’s five-year/unlimited kilometre warranty and you get free roadside assistance and state/territory auto club membership each year that you service your car at a dealer, for up to seven years.

The servicing schedule is every year or 15,000km, whichever comes first. There’s a four-year/60,000km capped-price servicing program, which costs $299 per service. 

Ford also offers a free service car loan that can be booked in ahead of your service.