2004 Buick Century vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Buick Century. In addition, the cost of maintenance, including insurance, on 2004 Buick Century would be higher. At 3,134 cc (6 cylinders), 2004 Buick Century is equipped with a bigger engine. In terms of performance, 2004 Buick Century (176 HP @ 5200 RPM) has 1 more horse power than 2006 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2004 Buick Century should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 150 kg more than 2004 Buick Century.
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 Opel Signum (370 Nm @ 1900 RPM) has 106 more torque (in Nm) than 2004 Buick Century. (264 Nm @ 4000 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2004 Buick Century.
Compare all specifications:
| 2004 Buick Century | 2006 Opel Signum | |
| Make | Buick | Opel |
| Model | Century | Signum |
| Year Released | 2004 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3134 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 176 HP | 175 HP |
| Engine RPM | 5200 RPM | 4000 RPM |
| Torque | 264 Nm | 370 Nm |
| Torque RPM | 4000 RPM | 1900 RPM |
| Engine Bore Size | 89 mm | 87.5 mm |
| Engine Stroke Size | 84 mm | 82 mm |
| Engine Compression Ratio | 9.6:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1520 kg | 1670 kg |
| Vehicle Length | 4950 mm | 4640 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2780 mm | 2840 mm |
| Fuel Consumption Overall | 9.8 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
