1999 Opel Omega vs. 2011 Citroen C5
To start off, 2011 Citroen C5 is newer by 12 year(s). Which means there will be less support and parts availability for 1999 Opel Omega. In addition, the cost of maintenance, including insurance, on 1999 Opel Omega would be higher. At 2,171 cc (4 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 2011 Citroen C5 (134 HP @ 6000 RPM) has 11 more horse power than 1999 Opel Omega. (123 HP @ 4000 RPM) In normal driving conditions, 2011 Citroen C5 should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 277 kg more than 2011 Citroen C5.
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, 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, 1999 Opel Omega (270 Nm @ 1600 RPM) has 80 more torque (in Nm) than 2011 Citroen C5. (190 Nm @ 4100 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2011 Citroen C5.
Compare all specifications:
| 1999 Opel Omega | 2011 Citroen C5 | |
| Make | Opel | Citroen |
| Model | Omega | C5 |
| Year Released | 1999 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 134 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 270 Nm | 190 Nm |
| Torque RPM | 1600 RPM | 4100 RPM |
| Engine Bore Size | 84.1 mm | 85 mm |
| Engine Stroke Size | 98 mm | 88 mm |
| Engine Compression Ratio | 18.5:1 | 11.0:1 |
| Acceleration 0-100mph | 12.5 seconds | 11.1 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1670 kg | 1393 kg |
| Vehicle Length | 4900 mm | 4620 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1480 mm |
| Wheelbase Size | 2610 mm | 2760 mm |
| Fuel Tank Capacity | 75 L | 66 L |
