2003 Opel Signum vs. 1972 Opel Commodore
To start off, 2003 Opel Signum is newer by 31 year(s). Which means there will be less support and parts availability for 1972 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1972 Opel Commodore would be higher. At 2,490 cc (6 cylinders), 1972 Opel Commodore is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (120 HP @ 6000 RPM) has 6 more horse power than 1972 Opel Commodore. (114 HP @ 5200 RPM). In normal driving conditions, 2003 Opel Signum should accelerate faster than 1972 Opel Commodore. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 365 kg more than 1972 Opel Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1972 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 1972 Opel Commodore. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 1972 Opel Commodore (177 Nm @ 3800 RPM) has 11 more torque (in Nm) than 2003 Opel Signum. (166 Nm @ 3800 RPM). This means 1972 Opel Commodore will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 1972 Opel Commodore | |
| Make | Opel | Opel |
| Model | Signum | Commodore |
| Year Released | 2003 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 2490 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 120 HP | 114 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 166 Nm | 177 Nm |
| Torque RPM | 3800 RPM | 3800 RPM |
| Engine Bore Size | 80.5 mm | 87 mm |
| Engine Stroke Size | 88.2 mm | 69.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1535 kg | 1170 kg |
| Vehicle Length | 4640 mm | 4620 mm |
| Vehicle Width | 1800 mm | 1740 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2670 mm |
| Fuel Tank Capacity | 60 L | 70 L |
