1971 Audi 100 vs. 2004 Audi A4
To start off, 2004 Audi A4 is newer by 33 year(s). Which means there will be less support and parts availability for 1971 Audi 100. In addition, the cost of maintenance, including insurance, on 1971 Audi 100 would be higher. At 1,871 cc (4 cylinders), 1971 Audi 100 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (161 HP @ 5700 RPM) has 52 more horse power than 1971 Audi 100. (109 HP @ 5600 RPM) In normal driving conditions, 2004 Audi A4 should accelerate faster than 1971 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 580 kg more than 1971 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Audi 100. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi A4 (230 Nm @ 1950 RPM) has 69 more torque (in Nm) than 1971 Audi 100. (161 Nm @ 3500 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1971 Audi 100.
Compare all specifications:
| 1971 Audi 100 | 2004 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1971 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1871 cc | 1781 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 109 HP | 161 HP |
| Engine RPM | 5600 RPM | 5700 RPM |
| Torque | 161 Nm | 230 Nm |
| Torque RPM | 3500 RPM | 1950 RPM |
| Engine Bore Size | 84 mm | 81 mm |
| Engine Stroke Size | 84.4 mm | 86.4 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1050 kg | 1630 kg |
| Vehicle Length | 4590 mm | 4580 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2690 mm | 2760 mm |
