1999 Audi A4 vs. 1975 BMW 1502
To start off, 1999 Audi A4 is newer by 24 year(s). Which means there will be less support and parts availability for 1975 BMW 1502. In addition, the cost of maintenance, including insurance, on 1975 BMW 1502 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 50 more horse power than 1975 BMW 1502. (73 HP @ 5800 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1975 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 376 kg more than 1975 BMW 1502. 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 1975 BMW 1502. 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 50 more torque (in Nm) than 1975 BMW 1502. (118 Nm @ 3700 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 1502.
Compare all specifications:
| 1999 Audi A4 | 1975 BMW 1502 | |
| Make | Audi | BMW |
| Model | A4 | 1502 |
| Year Released | 1999 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1573 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 73 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 168 Nm | 118 Nm |
| Torque RPM | 3500 RPM | 3700 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 71 mm |
| Engine Compression Ratio | 10.3:1 | 8.0:1 |
| Top Speed | 201 km/hour | 155 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1356 kg | 980 kg |
| Vehicle Length | 4480 mm | 4240 mm |
| Vehicle Width | 1740 mm | 1600 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2610 mm | 2510 mm |
| Fuel Tank Capacity | 60 L | 50 L |
