1977 Citroen GS vs. 1999 Opel Omega
To start off, 1999 Opel Omega is newer by 22 year(s). Which means there will be less support and parts availability for 1977 Citroen GS. In addition, the cost of maintenance, including insurance, on 1977 Citroen GS would be higher. At 2,497 cc (6 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (130 HP @ 4500 RPM) has 75 more horse power than 1977 Citroen GS. (55 HP @ 6500 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 1977 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 1977 Citroen GS weights approximately 35 kg more than 1999 Opel Omega.
Because 1999 Opel Omega 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 1999 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 1977 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, 1999 Opel Omega (250 Nm @ 2200 RPM) has 178 more torque (in Nm) than 1977 Citroen GS. (72 Nm @ 3500 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1977 Citroen GS.
Compare all specifications:
| 1977 Citroen GS | 1999 Opel Omega | |
| Make | Citroen | Opel |
| Model | GS | Omega |
| Year Released | 1977 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1015 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | boxer | in-line |
| Horse Power | 55 HP | 130 HP |
| Engine RPM | 6500 RPM | 4500 RPM |
| Torque | 72 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 2200 RPM |
| Engine Bore Size | 74 mm | 80 mm |
| Engine Stroke Size | 59 mm | 82.8 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 890 kg | 855 kg |
| Vehicle Length | 4130 mm | 4900 mm |
| Vehicle Width | 1620 mm | 1780 mm |
| Vehicle Height | 1360 mm | 1460 mm |
| Wheelbase Size | 2560 mm | 2640 mm |
| Fuel Tank Capacity | 43 L | 75 L |
