2009 Chevrolet Cobalt vs. 2003 Opel Signum
To start off, 2009 Chevrolet Cobalt 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 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (175 HP @ 4000 RPM) has 20 more horse power than 2009 Chevrolet Cobalt. (155 HP @ 6100 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 2009 Chevrolet Cobalt. With that said, vehicle weight also plays an important factor in acceleration. 2009 Chevrolet Cobalt weights approximately 80 kg more than 2003 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, 2003 Opel Signum (370 Nm @ 1900 RPM) has 167 more torque (in Nm) than 2009 Chevrolet Cobalt. (203 Nm @ 4900 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2009 Chevrolet Cobalt. 2009 Chevrolet Cobalt 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 Cobalt will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Chevrolet Cobalt | 2003 Opel Signum | |
| Make | Chevrolet | Opel |
| Model | Cobalt | Signum |
| Year Released | 2009 | 2003 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2201 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 155 HP | 175 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 203 Nm | 370 Nm |
| Torque RPM | 4900 RPM | 1900 RPM |
| Engine Compression Ratio | 9.1:1 | 18.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1750 kg | 1670 kg |
| Vehicle Length | 4590 mm | 4640 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2630 mm | 2700 mm |
| Fuel Consumption Highway | 7.1 L/100km | 5.8 L/100km |
| Fuel Consumption City | 9.8 L/100km | 10.2 L/100km |
| Fuel Consumption Overall | 8.7 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 49 L | 60 L |
