1999 Daihatsu Rocky vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Daihatsu Rocky. In addition, the cost of maintenance, including insurance, on 1999 Daihatsu Rocky would be higher. At 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (175 HP @ 5500 RPM) has 85 more horse power than 1999 Daihatsu Rocky. (90 HP @ 4200 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 1999 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 195 kg more than 1999 Daihatsu Rocky. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Daihatsu Rocky is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Signum. In wet, icy, snow, or gravel driving conditions, 1999 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, 2003 Opel Signum (370 Nm @ 1900 RPM) has 188 more torque (in Nm) than 1999 Daihatsu Rocky. (182 Nm @ 2500 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1999 Daihatsu Rocky.
Compare all specifications:
| 1999 Daihatsu Rocky | 2003 Opel Signum | |
| Make | Daihatsu | Opel |
| Model | Rocky | Signum |
| Year Released | 1999 | 2003 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2237 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 90 HP | 175 HP |
| Engine RPM | 4200 RPM | 5500 RPM |
| Torque | 182 Nm | 370 Nm |
| Torque RPM | 2500 RPM | 1900 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1380 kg | 1575 kg |
| Vehicle Length | 3850 mm | 4640 mm |
| Vehicle Width | 1700 mm | 1800 mm |
| Vehicle Height | 1860 mm | 1470 mm |
| Wheelbase Size | 2540 mm | 2840 mm |
