Paris Motor Show: Kia introduces its first European hybrid

by Sep 27, 2012All News, Kia2 comments

Kia hybrid technology, so far available only in the United States, is coming to Europe. A Europe-specific version of the stylish Optima Hybrid saloon is about to go on sale featuring sophisticated new technologies which are destined to appear in other Kia production models in the next few years.

The European Optima Hybrid features a 2.0-litre petrol engine and electric motor powertrain, and will be manufactured in Korea exclusively for the European market (left-hand drive only) The 2.0-litre GDi model has been developed from the 2.4-litre Optima Hybrid for the US market.

It represents another step forward in Kia’s EcoDynamics fuel-saving, emissions-reducing strategy and is the first D-segment petrol hybrid on sale in Europe.

Seamless driving for everyday motoring

The Optima Hybrid 2.0-litre employs a truly innovative Kia-developed parallel hybrid system that delivers a unique blend of performance – maximum power is 188 bhp, delivering acceleration from 0-62 mph in 9.4 seconds and a top speed of 120 mph – and class-leading fuel economy (52.3 mpg) with low CO2 emissions of 125 g/km.

The petrol engine is paired with a small electric motor and drives the front wheels via a six-speed automatic transmission – without the traditional torque converter. A special clutch between the engine and motor enables the engine to de-couple from the powertrain for zero-emissions full-electric driving up to 62 mph. The system does not require a high-capacity electric motor and generator, saving weight and cost.

Kia’s ISG stop/start system further ensures zero fuel consumption and emissions when the car is stationary in traffic.

In all conditions the Optima Hybrid’s operation is automatic and seamless. When setting off, the car drives in electric mode at speeds up to 62 mph. As the car’s speed increases, the Hybrid Starter motor/Generator (HSG) starts the petrol engine and the clutch is closed, allowing the engine to drive the car. The electric motor switches into hybrid operation and serves as either a secondary engine (during full acceleration and hill-climbing) or a generator (during cruising and deceleration) to recharge the battery pack as necessary.

When the car comes to a stop for more than a few seconds, the engine automatically shuts off. Under braking, the electric motor converts kinetic energy into electricity for storage in the battery pack. The HSG also functions as a generator to recharge the battery pack if the state of charge is low when the car is stationary.

The Optima Hybrid’s 30 kW Interior Permanent Magnet (IPM) synchronous electric motor develops produces 40 bhp and 205 Nm of torque alone. The combined electric motor plus petrol engine have a maximum combined power output of 188 bhp.

State-of-the-art batteries and optimised engine

Kia and partner Hyundai are the first manufactures to use a lithium polymer battery pack in a production car. Developed in partnership with LG Chem., lithium polymer battery technology is 20 per cent lighter and 40 per cent more compact than a traditional nickel metal hydride battery. The new batteries for the Optima Hybrid hold a charge for up to 25 per cent longer and provide an optimum balance between power delivery, energy density and thermal stability. Reliability is so good that the Optima’s battery pack is covered by a seven-year, 100,000 mile warranty.

Taking advantage of the additional, instant and continuously available torque from the electric motor, the Optima Hybrid uses 10 per cent less fuel on the combined cycle, 28 per cent less on the urban cycle and produces 21 per cent less CO2 than the 1.7-litre diesel Optima automatic.

Kia has modified its popular six-speed automatic transmission to suit the hybrid application. The traditional torque converter is replaced with the electric motor and a high-efficiency oil pump. This allows EV mode operation, maximises regeneration of kinetic energy during braking and also provides a more responsive drive than competitors’ CVT systems.

Ultra-low-drag aerodynamics

The award-winning styling of the Optima has been further enhanced for the hybrid model to optimise its streamlining. There are smoother front and rear bumpers plus unique side sills, lightweight low-drag alloy wheels, smooth under-floor panels, a lip-type boot spoiler and a new front grille with an active air flap that closes as the car’s speed increases. Together, these changes result in an ultra-low drag coefficient of Cd 0.26 – down from 0.29.

Inside, there is a unique supervision instrument cluster (with added hybrid powertrain information), plus a new centre stack, new door trim and new seat trim. Thanks to the long (2,795 mm) wheelbase, the Optima Hybrid’s cabin is exceptionally spacious, offering best-in-class front passenger headroom and legroom.

Generous equipment

The Optima Hybrid will be available with up to three different equipment levels, all generously specified with solar glass, dual zone air-conditioning, cruise control, an eight-way powered driver’s seat with memory function, Bluetooth® hands-free phone connectivity and smart-key entry with engine start/stop button. Further up the range, part-or full-leather seat trim, heated front seats, a ventilated driver’s seat, a seven-inch touch-screen satellite -navigation, rear-view safety camera, an Infinity premium audio system developed by Harman, Xenon headlamps, four-way powered front passenger seat, heated rear seats and a tyre pressure monitoring are fitted.

Benny Oeyen, Vice President Marketing and Product Planning, Kia Motors Europe, says: “The new Optima Hybrid combines the best of both worlds – performance and fuel economy. It’s the fastest accelerating automatic transmission Optima and also has the lowest emissions. By adding a hybrid model to our Optima line-up in Europe, we are providing customers with a fascinating powertrain choice. Our first hybrid production model in Europe showcases ingenious engineering and advanced technologies that will have a unique appeal, attracting new customers to the Kia brand.”


New Kia Optima Hybrid

Body and chassis

Four-door, five-seater D-segment sedan, with all-steel unitary construction bodyshell. Transversely mounted gasoline / electric parallel drive hybrid system powering the front wheels via a six-speed automatic transmission.

Gasoline engine      
2.0-litre 150 ps      
Type / capacity Nu, MPI, 4-in-line, DOHC 16-valve CVVT / 1999 cc
Power / torque 148 bhp (110 kW) @ 6000 rpm / 180 Nm @ 5000 rpm
Bore x stroke (mm) 81.0 x 97.0
Compression ratio 12.5:1
Electric motor      
270 VDC, 40.2 ps      
Type Interior-permanent magnet synchronous motor
Power / torque 40 bhp (30 kW) @ 1400-6000 rpm / 205 Nm @ 0-1400 rpm
Combined outputs      
Max power 188 bhp (140 kW) @ 6000 rpm
Automatic 6-sp (with fully automatic & sport modes)
Battery pack      
Type Lithium Polymer
Voltage / Capacity 270 / 5.3 Ah
Max output 34 kW
Weight (kg) 43.5
Suspension and damping      
Front Fully independent by subframe-mounted MacPherson struts, with coil springs and twin-tube gas-filled shock absorbers. Anti-roll bar.
Rear Fully independent by subframe-mounted multi-links, coil springs and twin-tube gas-filled shock absorbers. Anti-roll bar.
Type MDPS electric power assisted rack & pinion steering
Wheel turns 2.94 turns lock-to-lock; turning circle of 10.9 metres
Front 300 x 28 mm ventilated discs
Rear 284 x 10 mm solid discs 
Booster size 10.5 inch
100-to-0 kph 38.3 metres (with 17-inch wheels/tyres)
Wheels and tyres      
Standard 16 x 6.5 inch alloy 205/65 R16
Optional 17 x 7.0 inch alloy 215/55 R17
Spare Temporary steel wheel
Dimensions (mm)      
Overall length 4845
Overall width 1830 (excluding door mirrors)
Overall height 1455
Wheelbase 2795
Front track 1595-1601 (depending on wheel / tyre combination)
Rear track 1595-1601 (depending on wheel / tyre combination)
Front overhang 965
Rear overhang 1085
Ground clearance 135
Aerodynamic Cd 0.26
Interior Front   Rear
Head room 1028 965
Leg room 1155 880
Shoulder room 1455 1415
Hip room 1388 1384
Capacities (litres)
Fuel tank 65
Luggage 381
Kerb weight (kg) 1587
Maximum (kg) 2050
Weight distribution 57.6 / 42.4% front / rear
Top speed (kph) 192
0-to-100 kph (sec) 9.4
Fuel consumption and emissions    
Litres / 100 km* 5.4
CO2 (g/km) 125
*Official combined cycle test, model with 16-inch wheels/tyres

Written by Jose Antonio Lopez

Passionated about Korean cars from Hyundai, Kia & Genesis. Photographer. I love being in nature, hiking. Tech lover.

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