1989 Audi 100 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 20 year(s). Which means there will be less support and parts availability for 1989 Audi 100. In addition, the cost of maintenance, including insurance, on 1989 Audi 100 would be higher. At 1,781 cc (4 cylinders), 1989 Audi 100 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (161 HP @ 5700 RPM) has 71 more horse power than 1989 Audi 100. (90 HP @ 5200 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 1989 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 450 kg more than 1989 Audi 100. 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 (225 Nm @ 1950 RPM) has 80 more torque (in Nm) than 1989 Audi 100. (145 Nm @ 3000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1989 Audi 100.
Compare all specifications:
| 1989 Audi 100 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1989 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1779 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 90 HP | 161 HP |
| Engine RPM | 5200 RPM | 5700 RPM |
| Torque | 145 Nm | 225 Nm |
| Torque RPM | 3000 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1090 kg | 1540 kg |
| Vehicle Length | 4800 mm | 4580 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2690 mm | 2660 mm |
| Fuel Tank Capacity | 60 L | 70 L |
