1975 Audi 100 vs. 2004 Audi S4
To start off, 2004 Audi S4 is newer by 29 year(s). Which means there will be less support and parts availability for 1975 Audi 100. In addition, the cost of maintenance, including insurance, on 1975 Audi 100 would be higher. At 4,172 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (339 HP @ 7000 RPM) has 254 more horse power than 1975 Audi 100. (85 HP @ 5800 RPM) In normal driving conditions, 2004 Audi S4 should accelerate faster than 1975 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 670 kg more than 1975 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Audi 100. In wet, icy, snow, or gravel driving conditions, 2004 Audi S4 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 S4 (410 Nm @ 3500 RPM) has 286 more torque (in Nm) than 1975 Audi 100. (124 Nm @ 3500 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Audi 100.
Compare all specifications:
| 1975 Audi 100 | 2004 Audi S4 | |
| Make | Audi | Audi |
| Model | 100 | S4 |
| Year Released | 1975 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1588 cc | 4172 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 85 HP | 339 HP |
| Engine RPM | 5800 RPM | 7000 RPM |
| Torque | 124 Nm | 410 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1050 kg | 1720 kg |
| Vehicle Length | 4590 mm | 4590 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2690 mm | 2470 mm |
| Fuel Tank Capacity | 58 L | 63 L |
