1974 Alfa Romeo Alfetta vs. 2007 Opel Signum
To start off, 2007 Opel Signum is newer by 33 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 3,173 cc (6 cylinders), 2007 Opel Signum is equipped with a bigger engine. In terms of performance, 2007 Opel Signum (208 HP @ 6200 RPM) has 86 more horse power than 1974 Alfa Romeo Alfetta. (122 HP @ 5500 RPM) In normal driving conditions, 2007 Opel Signum should accelerate faster than 1974 Alfa Romeo Alfetta. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 562 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, 2007 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, 2007 Opel Signum (300 Nm @ 4000 RPM) has 133 more torque (in Nm) than 1974 Alfa Romeo Alfetta. (167 Nm @ 4400 RPM). This means 2007 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 | 2007 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | Alfetta | Signum |
| Year Released | 1974 | 2007 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 3173 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 122 HP | 208 HP |
| Engine RPM | 5500 RPM | 6200 RPM |
| Torque | 167 Nm | 300 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 87.5 mm |
| Engine Stroke Size | 88.5 mm | 88 mm |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Top Speed | 182 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 | 1048 kg | 1610 kg |
| Vehicle Length | 4160 mm | 4640 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1340 mm | 1470 mm |
| Wheelbase Size | 2520 mm | 2840 mm |
| Fuel Tank Capacity | 53 L | 60 L |
