1991 Opel Omega vs. 2011 Citroen C5
To start off, 2011 Citroen C5 is newer by 20 year(s). Which means there will be less support and parts availability for 1991 Opel Omega. In addition, the cost of maintenance, including insurance, on 1991 Opel Omega would be higher. At 1,998 cc (4 cylinders), 1991 Opel Omega is equipped with a bigger engine. In terms of performance, 2011 Citroen C5 (138 HP @ 6000 RPM) has 28 more horse power than 1991 Opel Omega. (110 HP @ 5200 RPM) In normal driving conditions, 2011 Citroen C5 should accelerate faster than 1991 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2011 Citroen C5 weights approximately 323 kg more than 1991 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 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 1991 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2011 Citroen C5, 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, 2011 Citroen C5 (200 Nm @ 4000 RPM) has 38 more torque (in Nm) than 1991 Opel Omega. (162 Nm @ 4600 RPM). This means 2011 Citroen C5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Omega.
Compare all specifications:
| 1991 Opel Omega | 2011 Citroen C5 | |
| Make | Opel | Citroen |
| Model | Omega | C5 |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 110 HP | 138 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 162 Nm | 200 Nm |
| Torque RPM | 4600 RPM | 4000 RPM |
| Engine Compression Ratio | 9.4:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1330 kg | 1653 kg |
| Vehicle Length | 4740 mm | 4840 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1490 mm | 1520 mm |
| Wheelbase Size | 2740 mm | 2820 mm |
| Fuel Tank Capacity | 70 L | 71 L |
