2005 Pontiac Sunfire vs. 2006 Opel Vectra
To start off, 2006 Opel Vectra is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Pontiac Sunfire. In addition, the cost of maintenance, including insurance, on 2005 Pontiac Sunfire would be higher. At 2,198 cc (4 cylinders), 2006 Opel Vectra is equipped with a bigger engine. In terms of performance, 2006 Opel Vectra (153 HP @ 5600 RPM) has 13 more horse power than 2005 Pontiac Sunfire. (140 HP @ 5600 RPM) In normal driving conditions, 2006 Opel Vectra should accelerate faster than 2005 Pontiac Sunfire. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Vectra weights approximately 195 kg more than 2005 Pontiac Sunfire. 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, 2006 Opel Vectra (220 Nm @ 3800 RPM) has 17 more torque (in Nm) than 2005 Pontiac Sunfire. (203 Nm @ 4000 RPM). This means 2006 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2005 Pontiac Sunfire.
Compare all specifications:
| 2005 Pontiac Sunfire | 2006 Opel Vectra | |
| Make | Pontiac | Opel |
| Model | Sunfire | Vectra |
| Year Released | 2005 | 2006 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2196 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 140 HP | 153 HP |
| Engine RPM | 5600 RPM | 5600 RPM |
| Torque | 203 Nm | 220 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 86 mm |
| Engine Stroke Size | 94 mm | 94.6 mm |
| Engine Compression Ratio | 10.0:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1260 kg | 1455 kg |
| Vehicle Length | 4630 mm | 4600 mm |
| Vehicle Width | 1740 mm | 1800 mm |
| Vehicle Height | 1350 mm | 1470 mm |
| Wheelbase Size | 2650 mm | 2710 mm |
| Fuel Consumption Overall | 7.8 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 53 L | 61 L |
