1987 Alfa Romeo 164 vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 16 year(s). Which means there will be less support and parts availability for 1987 Alfa Romeo 164. In addition, the cost of maintenance, including insurance, on 1987 Alfa Romeo 164 would be higher. At 2,959 cc (6 cylinders), 1987 Alfa Romeo 164 is equipped with a bigger engine. In terms of performance, 1987 Alfa Romeo 164 (192 HP @ 5800 RPM) has 93 more horse power than 2003 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 1987 Alfa Romeo 164 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 255 kg more than 1987 Alfa Romeo 164.
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, 1987 Alfa Romeo 164 (245 Nm @ 3000 RPM) has 15 more torque (in Nm) than 2003 Opel Signum. (230 Nm @ 1500 RPM). This means 1987 Alfa Romeo 164 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 1987 Alfa Romeo 164 | 2003 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 164 | Signum |
| Year Released | 1987 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 192 HP | 99 HP |
| Engine RPM | 5800 RPM | 3120 RPM |
| Torque | 245 Nm | 230 Nm |
| Torque RPM | 3000 RPM | 1500 RPM |
| Engine Bore Size | 93 mm | 84 mm |
| Engine Stroke Size | 72.6 mm | 90 mm |
| Engine Compression Ratio | 9.5:1 | 18.5:1 |
| Top Speed | 230 km/hour | 185 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 14.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1365 kg | 1620 kg |
| Vehicle Length | 4650 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2670 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 60 L |
