2009 Audi A4 vs. 1987 Citroen AX
To start off, 2009 Audi A4 is newer by 22 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 2,496 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (161 HP @ 4000 RPM) has 113 more horse power than 1987 Citroen AX. (48 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1987 Citroen AX. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 802 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2009 Audi A4 (350 Nm @ 1500 RPM) has 276 more torque (in Nm) than 1987 Citroen AX. (74 Nm @ 3700 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1987 Citroen AX.
Compare all specifications:
| 2009 Audi A4 | 1987 Citroen AX | |
| Make | Audi | Citroen |
| Model | A4 | AX |
| Year Released | 2009 | 1987 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 954 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 161 HP | 48 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 350 Nm | 74 Nm |
| Torque RPM | 1500 RPM | 3700 RPM |
| Engine Bore Size | 78.3 mm | 70 mm |
| Engine Stroke Size | 86.4 mm | 62 mm |
| Engine Compression Ratio | 18.0:1 | 9.4:1 |
| Top Speed | 227 km/hour | 148 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1510 kg | 708 kg |
| Vehicle Length | 4550 mm | 3530 mm |
| Vehicle Width | 1780 mm | 1560 mm |
| Vehicle Height | 1430 mm | 1360 mm |
| Wheelbase Size | 2660 mm | 2350 mm |
| Fuel Consumption Overall | 7 L/100km | 5 L/100km |
| Fuel Tank Capacity | 70 L | 36 L |
