2006 Hyundai Sonata vs. 2006 Kia Optima
To start off, both 2006 Hyundai Sonata and 2006 Kia Optima were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,671 cc (6 cylinders), 2006 Kia Optima is equipped with a bigger engine. In terms of performance, 2006 Kia Optima (170 HP @ 6000 RPM) has 8 more horse power than 2006 Hyundai Sonata. (162 HP @ 5800 RPM) In normal driving conditions, 2006 Kia Optima should accelerate faster than 2006 Hyundai Sonata. With that said, vehicle weight also plays an important factor in acceleration. 2006 Hyundai Sonata weights approximately 197 kg more than 2006 Kia Optima.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 Kia Optima (245 Nm @ 4000 RPM) has 23 more torque (in Nm) than 2006 Hyundai Sonata. (222 Nm @ 4250 RPM). This means 2006 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2006 Hyundai Sonata.
Compare all specifications:
| 2006 Hyundai Sonata | 2006 Kia Optima | |
| Make | Hyundai | Kia |
| Model | Sonata | Optima |
| Year Released | 2006 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2360 cc | 2671 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 162 HP | 170 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 222 Nm | 245 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Engine Bore Size | 88 mm | 86.7 mm |
| Engine Stroke Size | 97 mm | 75 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1685 kg | 1488 kg |
| Vehicle Length | 4800 mm | 4730 mm |
| Vehicle Width | 1840 mm | 1820 mm |
| Vehicle Height | 1480 mm | 1420 mm |
| Wheelbase Size | 2730 mm | 2710 mm |
| Fuel Consumption | 7.1 L/100km | 8.7 L/100km |
| Fuel Consumption City | 10 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 8.6 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 67 L | 65 L |
