2005 Chevrolet Impala vs. 2004 Opel Vectra
To start off, 2005 Chevrolet Impala is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2004 Opel Vectra would be higher. At 3,343 cc (6 cylinders), 2005 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2005 Chevrolet Impala (181 HP @ 5600 RPM) has 33 more horse power than 2004 Opel Vectra. (148 HP @ 4000 RPM). In normal driving conditions, 2005 Chevrolet Impala should accelerate faster than 2004 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Chevrolet Impala weights approximately 52 kg more than 2004 Opel Vectra. 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 Opel Vectra (321 Nm) has 43 more torque (in Nm) than 2005 Chevrolet Impala. (278 Nm). This means 2004 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2005 Chevrolet Impala. 2005 Chevrolet Impala has automatic transmission and 2004 Opel Vectra has manual transmission. 2004 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Chevrolet Impala will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Chevrolet Impala | 2004 Opel Vectra | |
| Make | Chevrolet | Opel |
| Model | Impala | Vectra |
| Year Released | 2005 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 3343 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 181 HP | 148 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 278 Nm | 321 Nm |
| Engine Bore Size | 91 mm | 82 mm |
| Engine Stroke Size | 84 mm | 90.4 mm |
| Engine Compression Ratio | 9.5:1 | 18.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Vehicle Weight | 1537 kg | 1485 kg |
| Vehicle Length | 5090 mm | 4830 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1510 mm |
