2003 Alfa Romeo 166 vs. 1999 Opel Signum
To start off, 2003 Alfa Romeo 166 is newer by 4 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 1,995 cc (4 cylinders), 1999 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (148 HP @ 6300 RPM) has 49 more horse power than 1999 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 175 kg more than 2003 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, 1999 Opel Signum (240 Nm @ 1500 RPM) has 58 more torque (in Nm) than 2003 Alfa Romeo 166. (182 Nm @ 3800 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166.
Compare all specifications:
| 2003 Alfa Romeo 166 | 1999 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 166 | Signum |
| Year Released | 2003 | 1999 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 99 HP |
| Engine RPM | 6300 RPM | 3120 RPM |
| Torque | 182 Nm | 240 Nm |
| Torque RPM | 3800 RPM | 1500 RPM |
| Top Speed | 211 km/hour | 185 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1420 kg | 1595 kg |
| Vehicle Length | 4730 mm | 4640 mm |
| Vehicle Width | 1810 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2840 mm |
| Fuel Tank Capacity | 69 L | 60 L |
