1991 Daihatsu Rocky vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 15 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 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 88 more horse power than 1991 Daihatsu Rocky. (87 HP @ 4600 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 1991 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 320 kg more than 1991 Daihatsu Rocky. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Daihatsu Rocky is four wheel drive (4WD), it will have significant more traction and grip than 2006 Opel Signum. 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, 2006 Opel Signum (370 Nm @ 1900 RPM) has 213 more torque (in Nm) than 1991 Daihatsu Rocky. (157 Nm @ 3000 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Daihatsu Rocky.
Compare all specifications:
| 1991 Daihatsu Rocky | 2006 Opel Signum | |
| Make | Daihatsu | Opel |
| Model | Rocky | Signum |
| Year Released | 1991 | 2006 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 87 HP | 175 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 157 Nm | 370 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1350 kg | 1670 kg |
| Vehicle Length | 3780 mm | 4640 mm |
| Vehicle Width | 1590 mm | 1800 mm |
| Vehicle Height | 1850 mm | 1470 mm |
| Wheelbase Size | 2210 mm | 2840 mm |
