2000 Alfa Romeo 166 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 5 year(s). Which means there will be less support and parts availability for 2000 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2000 Alfa Romeo 166 would be higher. At 2,959 cc (6 cylinders), 2000 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2000 Alfa Romeo 166 (226 HP @ 6200 RPM) has 51 more horse power than 2005 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2000 Alfa Romeo 166 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 120 kg more than 2000 Alfa Romeo 166.
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, 2005 Opel Signum (370 Nm @ 1900 RPM) has 94 more torque (in Nm) than 2000 Alfa Romeo 166. (276 Nm @ 5000 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2000 Alfa Romeo 166.
Compare all specifications:
| 2000 Alfa Romeo 166 | 2005 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 166 | Signum |
| Year Released | 2000 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 226 HP | 175 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 276 Nm | 370 Nm |
| Torque RPM | 5000 RPM | 1900 RPM |
| Engine Bore Size | 93 mm | 87.5 mm |
| Engine Stroke Size | 72.6 mm | 82 mm |
| Top Speed | 237 km/hour | 221 km/hour |
| Acceleration 0-100mph | 8.5 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1550 kg | 1670 kg |
| Vehicle Length | 4730 mm | 4640 mm |
| Vehicle Width | 1820 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2620 mm |
| Fuel Tank Capacity | 72 L | 60 L |
