2009 Audi A4 vs. 1987 Citroen BX
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 BX. In addition, the cost of maintenance, including insurance, on 1987 Citroen BX would be higher. At 2,965 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (222 HP @ 4000 RPM) has 160 more horse power than 1987 Citroen BX. (62 HP @ 5500 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1987 Citroen BX. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 720 kg more than 1987 Citroen BX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1987 Citroen BX. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 will offer significantly more control. 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 (450 Nm @ 1400 RPM) has 340 more torque (in Nm) than 1987 Citroen BX. (110 Nm @ 2500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1987 Citroen BX.
Compare all specifications:
| 2009 Audi A4 | 1987 Citroen BX | |
| Make | Audi | Citroen |
| Model | A4 | BX |
| Year Released | 2009 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 1360 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 222 HP | 62 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 450 Nm | 110 Nm |
| Torque RPM | 1400 RPM | 2500 RPM |
| Engine Compression Ratio | 17.0:1 | 9.3:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 235 km/hour | 150 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1610 kg | 890 kg |
| Vehicle Length | 4550 mm | 4240 mm |
| Vehicle Width | 1780 mm | 1680 mm |
| Vehicle Height | 1430 mm | 1370 mm |
| Wheelbase Size | 2660 mm | 2860 mm |
| Fuel Consumption Overall | 7.6 L/100km | 11.9 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
