1986 Alfa Romeo 75 vs. 2004 Opel Signum
To start off, 2004 Opel Signum is newer by 18 year(s). Which means there will be less support and parts availability for 1986 Alfa Romeo 75. In addition, the cost of maintenance, including insurance, on 1986 Alfa Romeo 75 would be higher. At 2,393 cc (6 cylinders), 1986 Alfa Romeo 75 is equipped with a bigger engine. In terms of performance, 1986 Alfa Romeo 75 (153 HP @ 5500 RPM) has 5 more horse power than 2004 Opel Signum. (148 HP @ 4000 RPM). In normal driving conditions, 1986 Alfa Romeo 75 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 450 kg more than 1986 Alfa Romeo 75.
Because 1986 Alfa Romeo 75 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1986 Alfa Romeo 75. However, in wet, icy, snow, or gravel driving conditions, 2004 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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 Opel Signum (326 Nm @ 2000 RPM) has 120 more torque (in Nm) than 1986 Alfa Romeo 75. (206 Nm @ 3200 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1986 Alfa Romeo 75.
Compare all specifications:
| 1986 Alfa Romeo 75 | 2004 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 75 | Signum |
| Year Released | 1986 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1908 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 153 HP | 148 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 206 Nm | 326 Nm |
| Torque RPM | 3200 RPM | 2000 RPM |
| Engine Bore Size | 88 mm | 82 mm |
| Engine Stroke Size | 68.3 mm | 90.4 mm |
| Engine Compression Ratio | 9.0:1 | 18.0:1 |
| Top Speed | 205 km/hour | 209 km/hour |
| Acceleration 0-100mph | 9 seconds | 10.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1160 kg | 1610 kg |
| Vehicle Length | 4340 mm | 4640 mm |
| Vehicle Width | 1640 mm | 1800 mm |
| Vehicle Height | 1360 mm | 1470 mm |
| Wheelbase Size | 2460 mm | 2840 mm |
| Fuel Tank Capacity | 68 L | 60 L |
