1972 BMW 520 vs. 1999 Daihatsu Sirion
To start off, 1999 Daihatsu Sirion is newer by 27 year(s). Which means there will be less support and parts availability for 1972 BMW 520. In addition, the cost of maintenance, including insurance, on 1972 BMW 520 would be higher. At 1,989 cc (4 cylinders), 1972 BMW 520 is equipped with a bigger engine. In terms of performance, 1972 BMW 520 (113 HP @ 5800 RPM) has 60 more horse power than 1999 Daihatsu Sirion. (53 HP @ 5200 RPM). In normal driving conditions, 1972 BMW 520 should accelerate faster than 1999 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 1972 BMW 520 weights approximately 340 kg more than 1999 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 1972 BMW 520. In wet, icy, snow, or gravel driving conditions, 1999 Daihatsu Sirion 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, 1972 BMW 520 (165 Nm @ 3700 RPM) has 77 more torque (in Nm) than 1999 Daihatsu Sirion. (88 Nm @ 3600 RPM). This means 1972 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1999 Daihatsu Sirion.
Compare all specifications:
| 1972 BMW 520 | 1999 Daihatsu Sirion | |
| Make | BMW | Daihatsu |
| Model | 520 | Sirion |
| Year Released | 1972 | 1999 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1989 cc | 988 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 113 HP | 53 HP |
| Engine RPM | 5800 RPM | 5200 RPM |
| Torque | 165 Nm | 88 Nm |
| Torque RPM | 3700 RPM | 3600 RPM |
| Engine Bore Size | 89 mm | 71.9 mm |
| Engine Stroke Size | 80 mm | 81 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1230 kg | 890 kg |
| Vehicle Length | 4630 mm | 3680 mm |
| Vehicle Width | 1700 mm | 1600 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2640 mm | 2350 mm |
| Fuel Tank Capacity | 70 L | 37 L |
