2006 Audi A4 vs. 1978 Audi 100
To start off, 2006 Audi A4 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 2,981 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (220 HP @ 6300 RPM) has 150 more horse power than 1978 Audi 100. (70 HP @ 4800 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 1978 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 560 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 A4 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 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, 2006 Audi A4 (300 Nm @ 3200 RPM) has 175 more torque (in Nm) than 1978 Audi 100. (125 Nm @ 3000 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1978 Audi 100.
Compare all specifications:
| 2006 Audi A4 | 1978 Audi 100 | |
| Make | Audi | Audi |
| Model | A4 | 100 |
| Year Released | 2006 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 1986 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 220 HP | 70 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 300 Nm | 125 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Engine Bore Size | 82.5 mm | 76.5 mm |
| Engine Stroke Size | 92.8 mm | 86.4 mm |
| Engine Compression Ratio | 10.5:1 | 23.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1770 kg | 1210 kg |
| Vehicle Length | 4580 mm | 4690 mm |
| Vehicle Width | 1780 mm | 1770 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2680 mm |
| Fuel Tank Capacity | 63 L | 60 L |
