2009 BMW X6 vs. 1999 Daihatsu Sirion
To start off, 2009 BMW X6 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 1999 Daihatsu Sirion would be higher. At 2,993 cc (6 cylinders), 2009 BMW X6 is equipped with a bigger engine. In terms of performance, 2009 BMW X6 (232 HP @ 4000 RPM) has 179 more horse power than 1999 Daihatsu Sirion. (53 HP @ 5200 RPM). In normal driving conditions, 2009 BMW X6 should accelerate faster than 1999 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X6 weights approximately 1260 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.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2009 BMW X6 (520 Nm @ 2000 RPM) has 432 more torque (in Nm) than 1999 Daihatsu Sirion. (88 Nm @ 3600 RPM). This means 2009 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Daihatsu Sirion. 2009 BMW X6 has automatic transmission and 1999 Daihatsu Sirion has manual transmission. 1999 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW X6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW X6 | 1999 Daihatsu Sirion | |
| Make | BMW | Daihatsu |
| Model | X6 | Sirion |
| Year Released | 2009 | 1999 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 988 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 232 HP | 53 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 520 Nm | 88 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 71.9 mm |
| Engine Stroke Size | 90 mm | 81 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2150 kg | 890 kg |
| Vehicle Length | 4880 mm | 3680 mm |
| Vehicle Width | 1990 mm | 1600 mm |
| Vehicle Height | 1700 mm | 1460 mm |
| Wheelbase Size | 2940 mm | 2350 mm |
| Fuel Tank Capacity | 85 L | 37 L |
