2004 Kia Optima vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Kia Optima. In addition, the cost of maintenance, including insurance, on 2004 Kia Optima would be higher. At 2,671 cc (6 cylinders), 2004 Kia Optima is equipped with a bigger engine. In terms of performance, 2004 Kia Optima (170 HP @ 4000 RPM) has 81 more horse power than 2006 Opel Astra. (89 HP @ 5600 RPM). In normal driving conditions, 2004 Kia Optima should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Kia Optima weights approximately 257 kg more than 2006 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2004 Kia Optima (245 Nm) has 120 more torque (in Nm) than 2006 Opel Astra. (125 Nm). This means 2004 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2004 Kia Optima | 2006 Opel Astra | |
| Make | Kia | Opel |
| Model | Optima | Astra |
| Year Released | 2004 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1364 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 89 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 245 Nm | 125 Nm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1487 kg | 1230 kg |
| Vehicle Length | 4730 mm | 4260 mm |
| Vehicle Width | 1820 mm | 1760 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2720 mm | 2620 mm |
| Fuel Consumption Overall | 10.2 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 65 L | 52 L |
