1977 Opel Commodore vs. 2003 Vauxhall Signum
To start off, 2003 Vauxhall Signum is newer by 26 year(s). Which means there will be less support and parts availability for 1977 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1977 Opel Commodore would be higher. At 2,784 cc (6 cylinders), 1977 Opel Commodore is equipped with a bigger engine. In terms of performance, 2003 Vauxhall Signum (153 HP @ 5600 RPM) has 12 more horse power than 1977 Opel Commodore. (141 HP @ 5200 RPM) In normal driving conditions, 2003 Vauxhall Signum should accelerate faster than 1977 Opel Commodore. With that said, vehicle weight also plays an important factor in acceleration. 2003 Vauxhall Signum weights approximately 165 kg more than 1977 Opel Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1977 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 1977 Opel Commodore. However, in wet, icy, snow, or gravel driving conditions, 2003 Vauxhall 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, 2003 Vauxhall Signum (220 Nm @ 3800 RPM) has 3 more torque (in Nm) than 1977 Opel Commodore. (217 Nm @ 3600 RPM). This means 2003 Vauxhall Signum will have an easier job in driving up hills or pulling heavy equipment than 1977 Opel Commodore.
Compare all specifications:
| 1977 Opel Commodore | 2003 Vauxhall Signum | |
| Make | Opel | Vauxhall |
| Model | Commodore | Signum |
| Year Released | 1977 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2784 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 141 HP | 153 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 217 Nm | 220 Nm |
| Torque RPM | 3600 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1285 kg | 1450 kg |
| Vehicle Length | 4620 mm | 4640 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2670 mm | 2840 mm |
