1985 Audi 100 vs. 2009 Audi A4
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 1,986 cc (5 cylinders), 1985 Audi 100 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (218 HP @ 5900 RPM) has 131 more horse power than 1985 Audi 100. (87 HP @ 4500 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 293 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.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1985 Audi 100. 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 (300 Nm @ 2200 RPM) has 128 more torque (in Nm) than 1985 Audi 100. (172 Nm @ 2750 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:
| 1985 Audi 100 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1985 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1986 cc | 1984 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 87 HP | 218 HP |
| Engine RPM | 4500 RPM | 5900 RPM |
| Torque | 172 Nm | 300 Nm |
| Torque RPM | 2750 RPM | 2200 RPM |
| Engine Bore Size | 76.5 mm | 82.5 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Engine Compression Ratio | 23.0:1 | 10.5:1 |
| Top Speed | 179 km/hour | 244 km/hour |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1302 kg | 1595 kg |
| Vehicle Length | 4800 mm | 4610 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2700 mm | 2660 mm |
| Fuel Tank Capacity | 80 L | 63 L |
