2003 Daihatsu Sirion vs. 2012 BMW X5
To start off, 2012 BMW X5 is newer by 9 year(s). Which means there will be less support and parts availability for 2003 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2003 Daihatsu Sirion would be higher. At 3,000 cc (6 cylinders), 2012 BMW X5 is equipped with a bigger engine. In terms of performance, 2012 BMW X5 (300 HP @ 5800 RPM) has 228 more horse power than 2003 Daihatsu Sirion. (72 HP @ 5200 RPM) In normal driving conditions, 2012 BMW X5 should accelerate faster than 2003 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW X5 weights approximately 1398 kg more than 2003 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 BMW X5 is all wheel drive (AWD), it will have significant more traction and grip than 2003 Daihatsu Sirion. In wet, icy, snow, or gravel driving conditions, 2012 BMW X5 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, 2012 BMW X5 (406 Nm @ 1300 RPM) has 305 more torque (in Nm) than 2003 Daihatsu Sirion. (101 Nm @ 3600 RPM). This means 2012 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Daihatsu Sirion. 2012 BMW X5 has automatic transmission and 2003 Daihatsu Sirion has manual transmission. 2003 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Daihatsu Sirion | 2012 BMW X5 | |
| Make | Daihatsu | BMW |
| Model | Sirion | X5 |
| Year Released | 2003 | 2012 |
| Body Type | Hatchback | SUV |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 3000 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 72 HP | 300 HP |
| Engine RPM | 5200 RPM | 5800 RPM |
| Torque | 101 Nm | 406 Nm |
| Torque RPM | 3600 RPM | 1300 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | AWD |
| Transmission Type | Manual | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 852 kg | 2250 kg |
| Vehicle Length | 3680 mm | 4854 mm |
| Vehicle Width | 1600 mm | 1933 mm |
| Vehicle Height | 1460 mm | 1775 mm |
| Wheelbase Size | 2350 mm | 2933 mm |
