2002 Ariel Atom vs. 1991 Daihatsu Rocky
To start off, 2002 Ariel Atom is newer by 11 year(s). Which means there will be less support and parts availability for 1991 Daihatsu Rocky. In addition, the cost of maintenance, including insurance, on 1991 Daihatsu Rocky would be higher. At 1,998 cc (4 cylinders), 1991 Daihatsu Rocky is equipped with a bigger engine. In terms of performance, 2002 Ariel Atom (109 HP @ 5000 RPM) has 22 more horse power than 1991 Daihatsu Rocky. (87 HP @ 4600 RPM). In normal driving conditions, 2002 Ariel Atom should accelerate faster than 1991 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 1991 Daihatsu Rocky weights approximately 890 kg more than 2002 Ariel Atom.
Because 1991 Daihatsu Rocky is four wheel drive (4WD), it will have significant more traction and grip than 2002 Ariel Atom. In wet, icy, snow, or gravel driving conditions, 1991 Daihatsu Rocky 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, 1991 Daihatsu Rocky (157 Nm @ 3000 RPM) has 9 more torque (in Nm) than 2002 Ariel Atom. (148 Nm @ 3000 RPM). This means 1991 Daihatsu Rocky will have an easier job in driving up hills or pulling heavy equipment than 2002 Ariel Atom.
Compare all specifications:
| 2002 Ariel Atom | 1991 Daihatsu Rocky | |
| Make | Ariel | Daihatsu |
| Model | Atom | Rocky |
| Year Released | 2002 | 1991 |
| Body Type | Roadster | SUV |
| Engine Position | Rear | Front |
| Engine Size | 1589 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 109 HP | 87 HP |
| Engine RPM | 5000 RPM | 4600 RPM |
| Torque | 148 Nm | 157 Nm |
| Torque RPM | 3000 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Vehicle Weight | 460 kg | 1350 kg |
| Vehicle Length | 3420 mm | 3780 mm |
| Vehicle Width | 1800 mm | 1590 mm |
| Vehicle Height | 1200 mm | 1850 mm |
| Wheelbase Size | 2350 mm | 2210 mm |
