1974 Alfa Romeo Alfetta vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 31 year(s). Which means there will be less support and parts availability for 1974 Alfa Romeo Alfetta. In addition, the cost of maintenance, including insurance, on 1974 Alfa Romeo Alfetta would be higher. At 3,174 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (208 HP @ 6000 RPM) has 99 more horse power than 1974 Alfa Romeo Alfetta. (109 HP @ 5600 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 1974 Alfa Romeo Alfetta. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 612 kg more than 1974 Alfa Romeo Alfetta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1974 Alfa Romeo Alfetta 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 1974 Alfa Romeo Alfetta. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Opel Signum (300 Nm @ 4000 RPM) has 159 more torque (in Nm) than 1974 Alfa Romeo Alfetta. (141 Nm @ 4300 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1974 Alfa Romeo Alfetta.
Compare all specifications:
| 1974 Alfa Romeo Alfetta | 2005 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | Alfetta | Signum |
| Year Released | 1974 | 2005 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 3174 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 109 HP | 208 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 141 Nm | 300 Nm |
| Torque RPM | 4300 RPM | 4000 RPM |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Top Speed | 159 km/hour | 237 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 998 kg | 1610 kg |
| Vehicle Length | 4200 mm | 4640 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1340 mm | 1470 mm |
| Wheelbase Size | 2410 mm | 2840 mm |
| Fuel Tank Capacity | 49 L | 60 L |
