2009 Audi A4 vs. 1985 Audi 100
To start off, 2009 Audi A4 is newer by 24 year(s). Which means there will be less support and parts availability for 1985 Audi 100. In addition, the cost of maintenance, including insurance, on 1985 Audi 100 would be higher. At 1,921 cc (5 cylinders), 1985 Audi 100 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (158 HP @ 4500 RPM) has 58 more horse power than 1985 Audi 100. (100 HP @ 5600 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1985 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 325 kg more than 1985 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 (250 Nm @ 1500 RPM) has 100 more torque (in Nm) than 1985 Audi 100. (150 Nm @ 3200 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1985 Audi 100.
Compare all specifications:
| 2009 Audi A4 | 1985 Audi 100 | |
| Make | Audi | Audi |
| Model | A4 | 100 |
| Year Released | 2009 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 1797 cc | 1921 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 158 HP | 100 HP |
| Engine RPM | 4500 RPM | 5600 RPM |
| Torque | 250 Nm | 150 Nm |
| Torque RPM | 1500 RPM | 3200 RPM |
| Engine Compression Ratio | 9.6:1 | 10.0:1 |
| Top Speed | 218 km/hour | 171 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1145 kg |
| Vehicle Length | 4710 mm | 4800 mm |
| Vehicle Width | 1830 mm | 1820 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2810 mm | 2700 mm |
