2009 Audi A4 vs. 1991 Citroen AX
To start off, 2009 Audi A4 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Citroen AX. In addition, the cost of maintenance, including insurance, on 1991 Citroen AX would be higher. At 1,983 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (200 HP @ 5100 RPM) has 152 more horse power than 1991 Citroen AX. (48 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1991 Citroen AX. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 262 kg more than 1991 Citroen AX. 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 1991 Citroen AX. 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 (281 Nm @ 1800 RPM) has 206 more torque (in Nm) than 1991 Citroen AX. (75 Nm @ 3700 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen AX. 2009 Audi A4 has automatic transmission and 1991 Citroen AX has manual transmission. 1991 Citroen AX will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 1991 Citroen AX | |
| Make | Audi | Citroen |
| Model | A4 | AX |
| Year Released | 2009 | 1991 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 953 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 200 HP | 48 HP |
| Engine RPM | 5100 RPM | 6000 RPM |
| Torque | 281 Nm | 75 Nm |
| Torque RPM | 1800 RPM | 3700 RPM |
| Engine Bore Size | 82.5 mm | 70 mm |
| Engine Stroke Size | 92.8 mm | 62 mm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 930 kg | 668 kg |
| Vehicle Length | 4580 mm | 3510 mm |
| Vehicle Width | 1780 mm | 1560 mm |
| Vehicle Height | 1400 mm | 1360 mm |
| Wheelbase Size | 2660 mm | 2290 mm |
