Kia Optima vs Aston Martin Vanquish

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 definition of luxury is having something you want, rather than something you need. And the Vanquish is definitely something you don’t need, but will desperately want once you’ve experienced it. It’s opulence on wheels, the kind of car you buy mostly because you can. Because owning a V8-powered Aston Martin wouldn’t cut it in your circle of friends. Or because you just want the very best things in life, cost be damned.

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.

While the engine is the unique heart of the Vanquish, the design is the first element that grabs your attention. Even for a brand renowned for its GT cars with imposingly long bonnets, the Vanquish stands out.

That’s because the designers deliberately added 80mm of space between the front axle and the A-pillar (the front windscreen pillar) to elongate the bonnet even more for what it calls a “rakish and indulgent” profile. 

The lines flow across the length of the Vanquish, from its trademark grille to its Kamm Tail, giving it a look that is somehow simultaneously classically Aston Martin - with elements of its multiple generations of GT cars - while also being contemporary. 

Some of the modern touches are derived from Formula One, as the brand looks to leverage its racing team, with bonnet louvres to help cool the engine without unsettling the air-flow too much.

Aston Martin’s Chief Creative Officer Marek Reichman calls the Vanquish “an iconic halo model” and explained the design was deliberately pushing “beyond the expected, rational, and thoughtful.” Which sums up this dramatic piece of automotive art quite nicely.

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?

Despite measuring nearly five metres long, the Vanquish is a surprisingly small car from a practicality perspective. Because the added wheelbase is ahead of the cabin, it remains strictly a two-seater, with no room for rear passengers.

There’s limited small item storage, too, aside from a couple of cupholders and a lidded console box. Although, on the plus side, the lack of rear seats creates room for some small shelves in case you need to store some loose items.  

It also has a surprisingly small 248-litre boot, which means limited storage for anything, including luggage, for a road trip in what would otherwise be a great road trip car.

As for the multimedia system, while not at the cutting edge (although Aston Martin will debut Apple CarPlay Ultra in its DBX model) the system works well for this type of car.

It’s unlikely too many under 25s will be grabbing this $700K luxury GT, so the fact the media system has a touchscreen and an array of physical buttons is a welcome detail.

As for the 1170-watt, 15-speaker Bowers & Wilkins sound system, it performs incredibly well, as you would probably expect. Like the car it has loads of power but excellent attention-to-detail with fantastic clarity, too.

The Vanquish sits at the top of the range for now, at least until the new Valhalla supercar arrives in Australia, and has an eye-watering starting price of $737,000.

Not only does that not include on-road costs, which will likely push the price closer to seven-figures, there’s also the plethora of options and customisation you can choose from that will add to the amount you pay.

Not that the standard specification is bad. For $700K you do get 21-inch alloy wheels, carbon ceramic brakes, 16-way adjustable sports seats, keyless ignition, a 10.2-inch touchscreen multimedia display, Apple CarPlay, Bluetooth, wireless phone charging and a 1170-watt 15-speaker Bowers & Wilkins sound system.

Of course, on top of all that you get a bespoke chassis and a unique twin-turbo V12 engine, that puts the Vanquish in the same class as the Ferrari 12Cilindri, which starts at $803,500 - making the Aston Martin look competitive. 

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.

The engine is undoubtedly the star attraction of the Vanquish, with the twin-turbo 5.2-litre V12 being the last of its kind in the British brand’s line-up now that the DB12 has switched to an AMG-sourced twin-turbo V8. 

While that engine is arguably better with its excellent performance, smaller dimensions and lighter weight, the fact remains that for many of Aston Martin’s long-time buyers, it’s V12 or nothing.

It also helps that the V12 produces an extremely potent 614kW and 1000Nm, which is way ahead of the 611kW/678Nm the Ferrari 12Cilindri makes. So you get bragging rights at the golf club with your Ferrari mates.

The engine features a unique titanium exhaust and is paired with an eight-speed automatic transaxle that drives the rear wheels.

That is enough to propel the Vanquish to a top speed of 345km/h, making it the fastest production car the brand has ever produced, with a 3.3 second 0-100km/h time.

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.

To say the Vanquish isn’t the most fuel frugal vehicle on the market is an obvious statement, but even its claimed 13.7L/100km is best described as optimistic.

That’s not surprising given its size and performance, but with an 82-litre fuel tank that’s a driving range of less than 600km, at best.

In the real world, during our time in the Vanquish, the car’s trip computer was indicating that we stayed in the high teens; although that featured limited freeway/extra-urban driving.

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.

As cars go, few can match what the Vanquish offers. Even in my 20+ years of driving every type of car imaginable, the Vanquish stands out as being something distinct, bold and special.

Sitting behind the wheel, the bonnet looks like it stretches out to the horizon and you feel like you’re sitting on the back axle of the car. And yet, when you start driving, the Vanquish feels like it shrinks around you.

At normal speeds it feels like a classic grand tourer, relaxed, refined and easy to drive. Obviously it's a firmer ride than your average luxury car, but that’s a small price to pay for the breadth of capability this car offers. 

Because once you get out of the urban environment, the Vanquish becomes something else entirely. On a winding road this British beast is surprisingly agile for such a big car.

The steering feels direct and the front end responds with much more precision and poise than you should reasonably expect from a car with such an exaggerated bonnet.

No, it doesn’t have the dynamic aggression the more compact Vantage offers, but it manages to take elements of that car and combine it with the GT nature of the DB12 to give you the best of both Aston Martin’s coupes.

Of course, the catch is it’s much too fast for Australian roads and isn’t really designed to be a track day car, so in Australia - without autobahns or more liberal views on speeding - the Vanquish in many respects doesn’t make sense.

But that is arguably its driving essence, you buy it because you know what it’s capable of, even if you’ll rarely use it, and that is an absolute luxury.

There’s no ANCAP rating given the extreme low-volume nature of the Vanquish. However, it does come with complete airbag coverage for both occupants and a laundry list of safety acronyms.

These include autonomous emergency braking (AEB), forward collision warning (FCW), adaptive cruise control (ACC), traffic sign recognition (TSR), lane keep assist (LKA), lane departure warning (LDW), blind spot assist (BSA) and rear cross-traffic assist (RCTA).

In addition there’s driver attention assist, to make sure you stay alert in such an expensive machine, and door exit assist, so you don’t open the long doors into a passing car or cyclist.

Importantly, none of these systems are intrusive or annoying, so credit to Aston Martin for integrating them smoothly.

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.

Despite the extraordinary price tag the Vanquish is covered by a very standard three-year/unlimited kilometre warranty. It’s a surprising, and some might argue disappointing, short period of coverage for a car that is not only expensive but should have a long life.

However, it does redeem itself in some way by including the first five years of servicing into the cost of the car. Ferrari offers seven for its models, so Aston Martin is still behind the market, but included servicing feels right for a car costing nearly $1 million once you put it in traffic.