2005 Audi A3 vs. 1978 Audi 100
To start off, 2005 Audi A3 is newer by 27 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 1,983 cc (4 cylinders), 2005 Audi A3 is equipped with a bigger engine. In terms of performance, 2005 Audi A3 (148 HP @ 6000 RPM) has 63 more horse power than 1978 Audi 100. (85 HP @ 5600 RPM). In normal driving conditions, 2005 Audi A3 should accelerate faster than 1978 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A3 weights approximately 205 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, 2005 Audi A3 (200 Nm @ 3500 RPM) has 76 more torque (in Nm) than 1978 Audi 100. (124 Nm @ 3200 RPM). This means 2005 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 1978 Audi 100.
Compare all specifications:
| 2005 Audi A3 | 1978 Audi 100 | |
| Make | Audi | Audi |
| Model | A3 | 100 |
| Year Released | 2005 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 1588 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 85 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 200 Nm | 124 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Bore Size | 82.5 mm | 79.5 mm |
| Engine Stroke Size | 92.8 mm | 80 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1315 kg | 1110 kg |
| Vehicle Length | 4210 mm | 4600 mm |
| Vehicle Width | 1770 mm | 1770 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2680 mm |
| Fuel Tank Capacity | 55 L | 60 L |
