2009 Audi A4 vs. 1978 Audi 100
To start off, 2009 Audi A4 is newer by 31 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 2,495 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (161 HP @ 4000 RPM) has 76 more horse power than 1978 Audi 100. (85 HP @ 5600 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1978 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 610 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 (350 Nm @ 1500 RPM) has 226 more torque (in Nm) than 1978 Audi 100. (124 Nm @ 3200 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1978 Audi 100.
Compare all specifications:
| 2009 Audi A4 | 1978 Audi 100 | |
| Make | Audi | Audi |
| Model | A4 | 100 |
| Year Released | 2009 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 1588 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 161 HP | 85 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 350 Nm | 124 Nm |
| Torque RPM | 1500 RPM | 3200 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1720 kg | 1110 kg |
| Vehicle Length | 4580 mm | 4600 mm |
| Vehicle Width | 1780 mm | 1770 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2680 mm |
