2005 Opel Signum vs. 1968 Opel Commodore
To start off, 2005 Opel Signum is newer by 37 year(s). Which means there will be less support and parts availability for 1968 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1968 Opel Commodore would be higher. At 2,239 cc (6 cylinders), 1968 Opel Commodore is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (99 HP @ 3120 RPM) has 5 more horse power than 1968 Opel Commodore. (94 HP @ 4800 RPM). In normal driving conditions, 2005 Opel Signum should accelerate faster than 1968 Opel Commodore. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 425 kg more than 1968 Opel Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1968 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 1968 Opel Commodore. 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 (230 Nm @ 1500 RPM) has 72 more torque (in Nm) than 1968 Opel Commodore. (158 Nm @ 3200 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1968 Opel Commodore.
Compare all specifications:
| 2005 Opel Signum | 1968 Opel Commodore | |
| Make | Opel | Opel |
| Model | Signum | Commodore |
| Year Released | 2005 | 1968 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 2239 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 99 HP | 94 HP |
| Engine RPM | 3120 RPM | 4800 RPM |
| Torque | 230 Nm | 158 Nm |
| Torque RPM | 1500 RPM | 3200 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 185 km/hour | 174 km/hour |
| Acceleration 0-100mph | 14 seconds | 12.4 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1595 kg | 1170 kg |
| Vehicle Length | 4640 mm | 4580 mm |
| Vehicle Width | 1800 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2740 mm | 2670 mm |
| Fuel Consumption Overall | 5.9 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
