1978 Audi 100 vs. 2006 Audi RS4
To start off, 2006 Audi RS4 is newer by 28 year(s). Which means there will be less support and parts availability for 1978 Audi 100. In addition, the cost of maintenance, including insurance, on 1978 Audi 100 would be higher. At 4,163 cc (8 cylinders), 2006 Audi RS4 is equipped with a bigger engine. In terms of performance, 2006 Audi RS4 (414 HP @ 7800 RPM) has 344 more horse power than 1978 Audi 100. (70 HP @ 4800 RPM) In normal driving conditions, 2006 Audi RS4 should accelerate faster than 1978 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi RS4 weights approximately 440 kg more than 1978 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Audi 100. In wet, icy, snow, or gravel driving conditions, 2006 Audi RS4 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, 2006 Audi RS4 (430 Nm @ 5500 RPM) has 305 more torque (in Nm) than 1978 Audi 100. (125 Nm @ 3000 RPM). This means 2006 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1978 Audi 100.
Compare all specifications:
| 1978 Audi 100 | 2006 Audi RS4 | |
| Make | Audi | Audi |
| Model | 100 | RS4 |
| Year Released | 1978 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1986 cc | 4163 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 70 HP | 414 HP |
| Engine RPM | 4800 RPM | 7800 RPM |
| Torque | 125 Nm | 430 Nm |
| Torque RPM | 3000 RPM | 5500 RPM |
| Engine Bore Size | 76.5 mm | 84.5 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Engine Compression Ratio | 23.0:1 | 12.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1210 kg | 1650 kg |
| Vehicle Length | 4690 mm | 4590 mm |
| Vehicle Width | 1770 mm | 1820 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2680 mm | 2660 mm |
| Fuel Tank Capacity | 60 L | 63 L |
