1999 Audi A4 vs. 1970 Innocenti J4
To start off, 1999 Audi A4 is newer by 29 year(s). Which means there will be less support and parts availability for 1970 Innocenti J4. In addition, the cost of maintenance, including insurance, on 1970 Innocenti J4 would be higher. At 1,781 cc (4 cylinders), 1999 Audi A4 is equipped with a bigger engine. In terms of performance, 1999 Audi A4 (123 HP @ 5800 RPM) has 67 more horse power than 1970 Innocenti J4. (56 HP @ 5500 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1970 Innocenti J4. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 510 kg more than 1970 Innocenti J4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1970 Innocenti J4. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 Audi A4 (168 Nm @ 3500 RPM) has 85 more torque (in Nm) than 1970 Innocenti J4. (83 Nm @ 2500 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1970 Innocenti J4.
Compare all specifications:
| 1999 Audi A4 | 1970 Innocenti J4 | |
| Make | Audi | Innocenti |
| Model | A4 | J4 |
| Year Released | 1999 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1097 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 56 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 168 Nm | 83 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 81 mm | 64.6 mm |
| Engine Stroke Size | 86.4 mm | 83.7 mm |
| Engine Compression Ratio | 10.3:1 | 21.5:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1390 kg | 880 kg |
| Vehicle Length | 4480 mm | 3720 mm |
| Vehicle Width | 1740 mm | 1540 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2610 mm | 2380 mm |
