Other features such as leather trim with contrasting stitching, satellite navigation with traffic information and a wireless Android phone charger built into the console complete the premium feel in the GT.
The Optima's interior displays a sense of space, and there's good front and rear head and leg room. A wider opening allows access to quite a spacious boot, even with a full-sized spare wheel in the cargo area.
Seat comfort is looked after with heated and fan-cooled leather front seats. They are also well bolstered and supportive in keeping with the GT theme. The heated, flat-bottomed steering wheel houses a myriad of control switches, and tucked behind it are gearshift paddles.
The new 2.0-litre turbo-charged direct-injection petrol engine is powerful, and it has the equal-best score in the class in performance, yet it still does well on the environment front, with a four-star rating despite fuel consumption that is only ranked as average.
The other area of noticeable improvement is in the sound and vibration experienced in the cabin. Quietness is again an element of the premium feel, and it is here where a lot of Kia's research and development dollars have been spent to get it right.
The refresh of the Optima has made it not only good value in the under-$50,000 market segment, but it's now a seriously stylish car that can take it up to the premium Japanese brands.
Second: Toyota Camry Altara SL Hybrid
The Toyota Camry recipe of good value, cheapness to run and solid engineering has stood the test of time. Although Camry has never been a styling icon, it has had the attraction of fuel-saving hybrid technologies that have been around long enough for buyers to feel comfortable that hybrid cars are well and truly out of the "laboratory experiment" stage and embedded in mainstream motoring.
The Atara SL is the top of the Camry range, and so its value-for-money proposition is a mixed bag, with excellent running and repair costs but only average price, warranty and insurance scores.
And although it has a lot of the desirable features such as satellite navigation with a traffic monitoring service, a premium audio system and leather-accented seats, it was a little off the function and performance pace compared with the other two finalists.
Its class-leading safety score was helped along by the inclusion of Toyota's pre-collision safety system, lane-departure warning, seven airbags, rear cross-traffic alert and reversing camera. And to make the drive a little more relaxing, there's active cruise control and automatic high beam.
This will be the last Australian-built Camry, so it is a bit of a swansong for it in some ways, but nevertheless it's a worthy runner-up this year.
Third: Ford Mondeo Trend
Touted as the replacement for the Falcon, the new-generation Ford Mondeo hatch may be slightly smaller than Falcon on the outside but inside it has large-car space, and if you need even more of that there's a wagon version.
The volume-selling Trend variant is mid-range model in the three-car Mondeo line-up. It was the cheapest of the three finalists but its lower price came at the cost of fewer standard features than the KIA. But it does boast the ubiquitous Ford SYNC 2 system that allows the driver to control their phone, music and climate control by voice.
The stand-out element of Mondeo's on-road performance was the drivability of the 2.0-litre turbo-petrol engine. It is a great powerplant that is used in a lot of other Ford product, including the EcoBoost Falcon. And its combination of ride, handling and braking was equal to the class-winning Kia Optima.
Besides the normal suite of nine airbags that all Mondeos have, the Trend version includes additional active safety systems such as pre-collision assist with pedestrian detection, lane keeping aid, lane-departure warning and a rear-view camera.
If it's going to replace Falcon, then Mondeo must play to that car's strengths, and Ford fans needn't despair on that front. And note, only a hybrid beat its environment score.