2005 Kia Optima vs. 2007 Opel Vectra
To start off, 2007 Opel Vectra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Kia Optima. In addition, the cost of maintenance, including insurance, on 2005 Kia Optima would be higher. At 2,792 cc (6 cylinders), 2007 Opel Vectra is equipped with a bigger engine. In terms of performance, 2007 Opel Vectra (276 HP @ 5500 RPM) has 138 more horse power than 2005 Kia Optima. (138 HP @ 3800 RPM) In normal driving conditions, 2007 Opel Vectra should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Vectra weights approximately 92 kg more than 2005 Kia Optima. 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, 2007 Opel Vectra (355 Nm) has 156 more torque (in Nm) than 2005 Kia Optima. (199 Nm). This means 2007 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 2005 Kia Optima | 2007 Opel Vectra | |
| Make | Kia | Opel |
| Model | Optima | Vectra |
| Year Released | 2005 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2360 cc | 2792 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 276 HP |
| Engine RPM | 3800 RPM | 5500 RPM |
| Torque | 199 Nm | 355 Nm |
| Engine Bore Size | 87 mm | 89 mm |
| Engine Stroke Size | 100 mm | 74.8 mm |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1488 kg | 1580 kg |
| Vehicle Length | 4730 mm | 4620 mm |
| Vehicle Width | 1820 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2710 mm | 2710 mm |
| Fuel Consumption Overall | 9.4 L/100km | 10.4 L/100km |
| Fuel Tank Capacity | 65 L | 61 L |
