2004 Ariel Atom vs. 2008 Daihatsu Sirion
To start off, 2008 Daihatsu Sirion is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Ariel Atom. In addition, the cost of maintenance, including insurance, on 2004 Ariel Atom would be higher. At 1,587 cc (4 cylinders), 2004 Ariel Atom is equipped with a bigger engine. In terms of performance, 2004 Ariel Atom (109 HP @ 5000 RPM) has 19 more horse power than 2008 Daihatsu Sirion. (90 HP @ 6000 RPM). In normal driving conditions, 2004 Ariel Atom should accelerate faster than 2008 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2008 Daihatsu Sirion weights approximately 520 kg more than 2004 Ariel Atom.
Because 2008 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 2004 Ariel Atom. In wet, icy, snow, or gravel driving conditions, 2008 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, 2004 Ariel Atom (148 Nm @ 3000 RPM) has 28 more torque (in Nm) than 2008 Daihatsu Sirion. (120 Nm @ 4400 RPM). This means 2004 Ariel Atom will have an easier job in driving up hills or pulling heavy equipment than 2008 Daihatsu Sirion.
Compare all specifications:
| 2004 Ariel Atom | 2008 Daihatsu Sirion | |
| Make | Ariel | Daihatsu |
| Model | Atom | Sirion |
| Year Released | 2004 | 2008 |
| Body Type | Roadster | Hatchback |
| Engine Position | Rear | Front |
| Engine Size | 1587 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 109 HP | 90 HP |
| Engine RPM | 5000 RPM | 6000 RPM |
| Torque | 148 Nm | 120 Nm |
| Torque RPM | 3000 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Number of Seats | 1 seats | 5 seats |
| Vehicle Weight | 460 kg | 980 kg |
| Vehicle Length | 3420 mm | 3610 mm |
| Vehicle Width | 1800 mm | 1670 mm |
| Vehicle Height | 1200 mm | 1560 mm |
| Wheelbase Size | 2350 mm | 2440 mm |
