2009 Chevrolet Impala vs. 2003 Opel Signum
To start off, 2009 Chevrolet Impala is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 3,500 cc (6 cylinders), 2009 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2009 Chevrolet Impala (211 HP @ 5800 RPM) has 36 more horse power than 2003 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2009 Chevrolet Impala should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 595 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, 2003 Opel Signum (370 Nm @ 1900 RPM) has 79 more torque (in Nm) than 2009 Chevrolet Impala. (291 Nm @ 4000 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2009 Chevrolet Impala. 2009 Chevrolet Impala has automatic transmission and 2003 Opel Signum has manual transmission. 2003 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 | 2003 Opel Signum | |
| Make | Chevrolet | Opel |
| Model | Impala | Signum |
| Year Released | 2009 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 3500 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 211 HP | 175 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 291 Nm | 370 Nm |
| Torque RPM | 4000 RPM | 1900 RPM |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1075 kg | 1670 kg |
| Vehicle Length | 5100 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2700 mm |
| Fuel Consumption Highway | 8.1 L/100km | 5.8 L/100km |
| Fuel Consumption City | 12.4 L/100km | 10.2 L/100km |
| Fuel Consumption Overall | 10.2 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
