1987 Citroen AX vs. 1999 Opel Omega
To start off, 1999 Opel Omega is newer by 12 year(s). Which means there will be less support and parts availability for 1987 Citroen AX. In addition, the cost of maintenance, including insurance, on 1987 Citroen AX 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 (131 HP @ 4500 RPM) has 83 more horse power than 1987 Citroen AX. (48 HP @ 6000 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 1987 Citroen AX. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 967 kg more than 1987 Citroen AX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1987 Citroen AX, 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 (235 Nm @ 2200 RPM) has 161 more torque (in Nm) than 1987 Citroen AX. (74 Nm @ 3700 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1987 Citroen AX.
Compare all specifications:
| 1987 Citroen AX | 1999 Opel Omega | |
| Make | Citroen | Opel |
| Model | AX | Omega |
| Year Released | 1987 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 954 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 48 HP | 131 HP |
| Engine RPM | 6000 RPM | 4500 RPM |
| Torque | 74 Nm | 235 Nm |
| Torque RPM | 3700 RPM | 2200 RPM |
| Engine Bore Size | 70 mm | 80 mm |
| Engine Stroke Size | 62 mm | 82.8 mm |
| Engine Compression Ratio | 9.4:1 | 22.5:1 |
| Top Speed | 148 km/hour | 200 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 708 kg | 1675 kg |
| Vehicle Length | 3530 mm | 4900 mm |
| Vehicle Width | 1560 mm | 1780 mm |
| Vehicle Height | 1360 mm | 1460 mm |
| Wheelbase Size | 2350 mm | 2840 mm |
| Fuel Tank Capacity | 36 L | 75 L |
