1987 BMW 730 vs. 1998 Daihatsu Sirion
To start off, 1998 Daihatsu Sirion is newer by 11 year(s). Which means there will be less support and parts availability for 1987 BMW 730. In addition, the cost of maintenance, including insurance, on 1987 BMW 730 would be higher. At 2,986 cc (6 cylinders), 1987 BMW 730 is equipped with a bigger engine. In terms of performance, 1987 BMW 730 (181 HP @ 5800 RPM) has 81 more horse power than 1998 Daihatsu Sirion. (100 HP @ 7000 RPM). In normal driving conditions, 1987 BMW 730 should accelerate faster than 1998 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 1987 BMW 730 weights approximately 702 kg more than 1998 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1998 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 1987 BMW 730. In wet, icy, snow, or gravel driving conditions, 1998 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, 1987 BMW 730 (260 Nm @ 4000 RPM) has 140 more torque (in Nm) than 1998 Daihatsu Sirion. (120 Nm @ 4400 RPM). This means 1987 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1998 Daihatsu Sirion.
Compare all specifications:
| 1987 BMW 730 | 1998 Daihatsu Sirion | |
| Make | BMW | Daihatsu |
| Model | 730 | Sirion |
| Year Released | 1987 | 1998 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 1298 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 100 HP |
| Engine RPM | 5800 RPM | 7000 RPM |
| Torque | 260 Nm | 120 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Bore Size | 89 mm | 72 mm |
| Engine Stroke Size | 80 mm | 79.7 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1602 kg | 900 kg |
| Vehicle Length | 4920 mm | 3680 mm |
| Vehicle Width | 1850 mm | 1600 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2840 mm | 2350 mm |
| Fuel Tank Capacity | 90 L | 37 L |
