1973 Opel Commodore vs. 2002 Opel Signum
To start off, 2002 Opel Signum is newer by 29 year(s). Which means there will be less support and parts availability for 1973 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1973 Opel Commodore would be higher. At 2,488 cc (6 cylinders), 1973 Opel Commodore is equipped with a bigger engine. In terms of performance, 2002 Opel Signum (153 HP @ 5600 RPM) has 39 more horse power than 1973 Opel Commodore. (114 HP @ 5200 RPM) In normal driving conditions, 2002 Opel Signum should accelerate faster than 1973 Opel Commodore. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Signum weights approximately 315 kg more than 1973 Opel Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1973 Opel Commodore 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 1973 Opel Commodore. However, in wet, icy, snow, or gravel driving conditions, 2002 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, 2002 Opel Signum (250 Nm @ 3800 RPM) has 73 more torque (in Nm) than 1973 Opel Commodore. (177 Nm @ 3800 RPM). This means 2002 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1973 Opel Commodore.
Compare all specifications:
| 1973 Opel Commodore | 2002 Opel Signum | |
| Make | Opel | Opel |
| Model | Commodore | Signum |
| Year Released | 1973 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 2488 cc | 2172 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 153 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 177 Nm | 250 Nm |
| Torque RPM | 3800 RPM | 3800 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1170 kg | 1485 kg |
| Vehicle Length | 4620 mm | 4640 mm |
| Vehicle Width | 1740 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2680 mm | 2710 mm |
| Fuel Tank Capacity | 70 L | 60 L |
