2004 Alfa Romeo 156 vs. 1999 Opel Signum
To start off, 2004 Alfa Romeo 156 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,171 cc (4 cylinders), 1999 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (148 HP @ 4000 RPM) has 25 more horse power than 1999 Opel Signum. (123 HP @ 3250 RPM). In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 85 kg more than 2004 Alfa Romeo 156.
Because 2004 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2004 Alfa Romeo 156 will offer significantly more control. 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, 2004 Alfa Romeo 156 (300 Nm @ 2000 RPM) has 29 more torque (in Nm) than 1999 Opel Signum. (271 Nm @ 1500 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum. 1999 Opel Signum has automatic transmission and 2004 Alfa Romeo 156 has manual transmission. 2004 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Alfa Romeo 156 | 1999 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Signum |
| Year Released | 2004 | 1999 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 123 HP |
| Engine RPM | 4000 RPM | 3250 RPM |
| Torque | 300 Nm | 271 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Fuel Type | Diesel | Diesel |
| Top Speed | 200 km/hour | 201 km/hour |
| Acceleration 0-100mph | 10.5 seconds | 11.2 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1525 kg | 1610 kg |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2840 mm |
| Fuel Consumption Overall | 6.8 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 63 L | 61 L |
