1973 Citroen GS vs. 1977 Opel Commodore
To start off, 1977 Opel Commodore is newer by 4 year(s). Which means there will be less support and parts availability for 1973 Citroen GS. In addition, the cost of maintenance, including insurance, on 1973 Citroen GS would be higher. At 2,784 cc (6 cylinders), 1977 Opel Commodore is equipped with a bigger engine. In terms of performance, 1977 Opel Commodore (141 HP @ 5200 RPM) has 34 more horse power than 1973 Citroen GS. (107 HP @ 6500 RPM) In normal driving conditions, 1977 Opel Commodore should accelerate faster than 1973 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 1977 Opel Commodore weights approximately 145 kg more than 1973 Citroen GS. 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, 1973 Citroen GS, 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, 1977 Opel Commodore (217 Nm @ 3600 RPM) has 80 more torque (in Nm) than 1973 Citroen GS. (137 Nm @ 3000 RPM). This means 1977 Opel Commodore will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen GS.
Compare all specifications:
| 1973 Citroen GS | 1977 Opel Commodore | |
| Make | Citroen | Opel |
| Model | GS | Commodore |
| Year Released | 1973 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1990 cc | 2784 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 107 HP | 141 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 137 Nm | 217 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1140 kg | 1285 kg |
| Vehicle Length | 4130 mm | 4620 mm |
| Vehicle Width | 1620 mm | 1730 mm |
| Vehicle Height | 1380 mm | 1430 mm |
| Wheelbase Size | 2570 mm | 2670 mm |
| Fuel Tank Capacity | 56 L | 70 L |
