1975 Alfa Romeo Junior vs. 2007 Audi A4
To start off, 2007 Audi A4 is newer by 32 year(s). Which means there will be less support and parts availability for 1975 Alfa Romeo Junior. In addition, the cost of maintenance, including insurance, on 1975 Alfa Romeo Junior would be higher. At 1,780 cc (4 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (161 HP @ 5700 RPM) has 53 more horse power than 1975 Alfa Romeo Junior. (108 HP @ 6000 RPM) In normal driving conditions, 2007 Audi A4 should accelerate faster than 1975 Alfa Romeo Junior. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 440 kg more than 1975 Alfa Romeo Junior. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Alfa Romeo Junior. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Audi A4 (225 Nm @ 1950 RPM) has 85 more torque (in Nm) than 1975 Alfa Romeo Junior. (140 Nm @ 2800 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Alfa Romeo Junior.
Compare all specifications:
| 1975 Alfa Romeo Junior | 2007 Audi A4 | |
| Make | Alfa Romeo | Audi |
| Model | Junior | A4 |
| Year Released | 1975 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1568 cc | 1780 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 108 HP | 161 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 140 Nm | 225 Nm |
| Torque RPM | 2800 RPM | 1950 RPM |
| Engine Bore Size | 78 mm | 81 mm |
| Engine Stroke Size | 82 mm | 86.4 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1030 kg | 1470 kg |
| Vehicle Length | 3910 mm | 4550 mm |
| Vehicle Width | 1560 mm | 1780 mm |
| Vehicle Height | 1290 mm | 1430 mm |
| Wheelbase Size | 2260 mm | 2650 mm |
