2010 Kia Optima

2.4-liter Four-Cylinder Engine
Although its specifications aren't too dissimilar from others in the midsize segment, the Optima's all-aluminum 2.4-liter four-cylinder engine delivers a pleasant character that is involving for the driver. It offers crisp response and decent power, and is so good that, on balance, there seems little justification for either the additional expense or the greater fuel consumption of the V6.

Navigation
Usually an option available only on top-of-the-line trims, Kia offers its navigation unit on all but the entry level LX.

Kia continues to offer increasingly worthwhile upgrades in interior design, materials and safety. Even in base LX form, the Optima's interior materials rate well above merely acceptable. On those cars with leather we were impressed by the hide's tone and its perforated texture. However, the front seat cushions, though comfortable, could still do with a bit more upward angle. The "barrel-type" instrument cluster imparts a racy feel, as does new red backlighting. As the Optima is intended to appeal to young families, safety receives an appropriate emphasis. Its standard airbag arrangement includes advanced dual front airbags and front seat-mounted side airbags, along with full-length side-curtain airbags.

While unobtrusively styled, the 2010 Kia Optima is still modern and attractive. The profile is fronted by an attractive yet vaguely Accord-like grille flanked by cat-eye halogen headlights. The passenger cabin provides a nice balance between outward visibility and efficient aerodynamics. Front and rear overhangs are fairly short, while the fenderwells are nicely filled with either the standard 16-inch or the available 17-inch tires. The overall effect is that the Optima looks balanced and secure, in a way that is modern and even slightly sporty.

Our driving experience was limited to the 2.4-liter four-cylinder engine with either the five-speed manual or five-speed automatic. In both instances we were pleased by the new engine's responsiveness, and the transmission gearing was well matched to the engine's characteristics. The addition of variable valve timing helps bump output to a respectable 175 horsepower. Other than its superior passing and uphill acceleration advantages, we see little benefit in opting for the V6, given the balance, efficiency and entirely acceptable performance of the in-line four.

2.4-liter in-line 4
175 horsepower @6000 rpm
169 lb.-ft. of torque @ 4000 rpm
EPA city/highway fuel economy: 22/32

2.7-liter V6
194 horsepower @ 6000 rpm
184 lb.-ft. of torque @ 4500 rpm
EPA city/highway fuel economy: 20/28