2006 Audi A3 vs. 1973 Innocenti J4
To start off, 2006 Audi A3 is newer by 33 year(s). Which means there will be less support and parts availability for 1973 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1973 Innocenti J4 would be higher. At 1,593 cc (4 cylinders), 2006 Audi A3 is equipped with a bigger engine. In terms of performance, 2006 Audi A3 (101 HP @ 5600 RPM) has 45 more horse power than 1973 Innocenti J4. (56 HP @ 5500 RPM). In normal driving conditions, 2006 Audi A3 should accelerate faster than 1973 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A3 weights approximately 385 kg more than 1973 Innocenti J4. 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, 2006 Audi A3 (148 Nm @ 3800 RPM) has 65 more torque (in Nm) than 1973 Innocenti J4. (83 Nm @ 2500 RPM). This means 2006 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 1973 Innocenti J4.
Compare all specifications:
| 2006 Audi A3 | 1973 Innocenti J4 | |
| Make | Audi | Innocenti |
| Model | A3 | J4 |
| Year Released | 2006 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 1593 cc | 1097 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 101 HP | 56 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 148 Nm | 83 Nm |
| Torque RPM | 3800 RPM | 2500 RPM |
| Engine Bore Size | 81 mm | 64.6 mm |
| Engine Stroke Size | 77.4 mm | 83.7 mm |
| Engine Compression Ratio | 10.3:1 | 21.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1265 kg | 880 kg |
| Vehicle Length | 4290 mm | 3720 mm |
| Vehicle Width | 1770 mm | 1540 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2580 mm | 2380 mm |
