2003 Opel Signum vs. 1989 Alfa Romeo 164
To start off, 2003 Opel Signum is newer by 14 year(s). Which means there will be less support and parts availability for 1989 Alfa Romeo 164. In addition, the cost of maintenance, including insurance, on 1989 Alfa Romeo 164 would be higher. At 2,959 cc (6 cylinders), 1989 Alfa Romeo 164 is equipped with a bigger engine. In terms of performance, 1989 Alfa Romeo 164 (185 HP @ 5600 RPM) has 86 more horse power than 2003 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 1989 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 200 kg more than 1989 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, 1989 Alfa Romeo 164 (259 Nm @ 4400 RPM) has 29 more torque (in Nm) than 2003 Opel Signum. (230 Nm @ 1500 RPM). This means 1989 Alfa Romeo 164 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum. 1989 Alfa Romeo 164 has automatic transmission and 2003 Opel Signum has manual transmission. 2003 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1989 Alfa Romeo 164 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Signum | 1989 Alfa Romeo 164 | |
| Make | Opel | Alfa Romeo |
| Model | Signum | 164 |
| Year Released | 2003 | 1989 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2959 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 99 HP | 185 HP |
| Engine RPM | 3120 RPM | 5600 RPM |
| Torque | 230 Nm | 259 Nm |
| Torque RPM | 1500 RPM | 4400 RPM |
| Engine Bore Size | 84 mm | 93.1 mm |
| Engine Stroke Size | 90 mm | 72.6 mm |
| Engine Compression Ratio | 18.5:1 | 9.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1620 kg | 1420 kg |
| Vehicle Length | 4640 mm | 4650 mm |
| Vehicle Width | 1800 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2840 mm | 2670 mm |
| Fuel Tank Capacity | 60 L | 70 L |
