2006 Chevrolet Impala vs. 2004 Opel Signum
To start off, 2006 Chevrolet Impala is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 5,326 cc (8 cylinders), 2006 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2006 Chevrolet Impala (304 HP @ 5600 RPM) has 131 more horse power than 2004 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2006 Chevrolet Impala should accelerate faster than 2004 Opel Signum.
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 Chevrolet Impala (438 Nm @ 4400 RPM) has 173 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 2006 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 2006 Chevrolet Impala has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Chevrolet Impala will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Chevrolet Impala | 2004 Opel Signum | |
| Make | Chevrolet | Opel |
| Model | Impala | Signum |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5326 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 304 HP | 173 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 438 Nm | 265 Nm |
| Torque RPM | 4400 RPM | 2500 RPM |
| Engine Bore Size | 96 mm | 86 mm |
| Engine Stroke Size | 92 mm | 86 mm |
| Engine Compression Ratio | 9.8:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5100 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2840 mm |
| Fuel Consumption Overall | 10.7 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
