1986 Alfa Romeo 75 vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 20 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 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 22 more horse power than 1986 Alfa Romeo 75. (153 HP @ 5500 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 1986 Alfa Romeo 75. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 510 kg more than 1986 Alfa Romeo 75. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2006 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, 2006 Opel Signum (370 Nm @ 1900 RPM) has 164 more torque (in Nm) than 1986 Alfa Romeo 75. (206 Nm @ 3200 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1986 Alfa Romeo 75. 2006 Opel Signum has automatic transmission and 1986 Alfa Romeo 75 has manual transmission. 1986 Alfa Romeo 75 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1986 Alfa Romeo 75 | 2006 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 75 | Signum |
| Year Released | 1986 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 153 HP | 175 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 206 Nm | 370 Nm |
| Torque RPM | 3200 RPM | 1900 RPM |
| Engine Bore Size | 88 mm | 87.5 mm |
| Engine Stroke Size | 68.3 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 18.5:1 |
| Top Speed | 205 km/hour | 221 km/hour |
| Acceleration 0-100mph | 9 seconds | 9.4 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1160 kg | 1670 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 |
