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 1,797 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (158 HP @ 4500 RPM) has 63 more horse power than 1987 Citroen AX. (95 HP @ 6800 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 764 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 (250 Nm @ 1500 RPM) has 135 more torque (in Nm) than 1987 Citroen AX. (115 Nm @ 5000 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 | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1797 cc | 1293 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 158 HP | 95 HP |
| Engine RPM | 4500 RPM | 6800 RPM |
| Torque | 250 Nm | 115 Nm |
| Torque RPM | 1500 RPM | 5000 RPM |
| Engine Bore Size | 82.5 mm | 75 mm |
| Engine Stroke Size | 84.1 mm | 73.2 mm |
| Engine Compression Ratio | 9.6:1 | 9.6:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1470 kg | 706 kg |
| Vehicle Length | 4710 mm | 3510 mm |
| Vehicle Width | 1830 mm | 1610 mm |
| Vehicle Height | 1440 mm | 1350 mm |
| Wheelbase Size | 2810 mm | 2290 mm |
| Fuel Consumption Overall | 7.2 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 65 L | 66 L |
