2009 Chevrolet Impala vs. 2005 Opel Signum
To start off, 2009 Chevrolet Impala is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 3,899 cc (6 cylinders), 2009 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2009 Chevrolet Impala (233 HP @ 5600 RPM) has 134 more horse power than 2005 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2009 Chevrolet Impala should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 46 kg more than 2009 Chevrolet Impala.
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, 2009 Chevrolet Impala (325 Nm @ 4000 RPM) has 95 more torque (in Nm) than 2005 Opel Signum. (230 Nm @ 1500 RPM). This means 2009 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum. 2009 Chevrolet Impala has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Chevrolet Impala will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Chevrolet Impala | 2005 Opel Signum | |
| Make | Chevrolet | Opel |
| Model | Impala | Signum |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3899 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 233 HP | 99 HP |
| Engine RPM | 5600 RPM | 3120 RPM |
| Torque | 325 Nm | 230 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1549 kg | 1595 kg |
| Vehicle Length | 5100 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2740 mm |
| Fuel Consumption Overall | 11.2 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
