1971 Citroen SM vs. 2004 Opel Signum
To start off, 2004 Opel Signum is newer by 33 year(s). Which means there will be less support and parts availability for 1971 Citroen SM. In addition, the cost of maintenance, including insurance, on 1971 Citroen SM would be higher. At 2,670 cc (6 cylinders), 1971 Citroen SM is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 15 more horse power than 1971 Citroen SM. (158 HP @ 5500 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 1971 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 110 kg more than 1971 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2004 Opel Signum (265 Nm @ 2500 RPM) has 30 more torque (in Nm) than 1971 Citroen SM. (235 Nm @ 4000 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM.
Compare all specifications:
1971 Citroen SM | 2004 Opel Signum | |
Make | Citroen | Opel |
Model | SM | Signum |
Year Released | 1971 | 2004 |
Body Type | Coupe | Hatchback |
Engine Position | Front | Front |
Engine Size | 2670 cc | 1995 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 2 valves | 4 valves |
Horse Power | 158 HP | 173 HP |
Engine RPM | 5500 RPM | 5500 RPM |
Torque | 235 Nm | 265 Nm |
Torque RPM | 4000 RPM | 2500 RPM |
Engine Bore Size | 87 mm | 86 mm |
Engine Stroke Size | 75 mm | 86 mm |
Fuel Type | Gasoline | Gasoline - Premium |
Drive Type | Front | Front |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 5 doors |
Vehicle Weight | 1450 kg | 1560 kg |
Vehicle Length | 4900 mm | 4640 mm |
Vehicle Width | 1850 mm | 1800 mm |
Vehicle Height | 1330 mm | 1470 mm |
Wheelbase Size | 2950 mm | 2840 mm |
Fuel Tank Capacity | 89 L | 60 L |