1986 Daihatsu Rocky vs. 1998 Opel Signum
To start off, 1998 Opel Signum is newer by 12 year(s). Which means there will be less support and parts availability for 1986 Daihatsu Rocky. In addition, the cost of maintenance, including insurance, on 1986 Daihatsu Rocky would be higher. At 1,997 cc (4 cylinders), 1986 Daihatsu Rocky is equipped with a bigger engine. In terms of performance, 1998 Opel Signum (99 HP @ 3120 RPM) has 12 more horse power than 1986 Daihatsu Rocky. (87 HP @ 4600 RPM) In normal driving conditions, 1998 Opel Signum should accelerate faster than 1986 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 1998 Opel Signum weights approximately 245 kg more than 1986 Daihatsu Rocky. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1986 Daihatsu Rocky is four wheel drive (4WD), it will have significant more traction and grip than 1998 Opel Signum. In wet, icy, snow, or gravel driving conditions, 1986 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, 1998 Opel Signum (185 Nm @ 1500 RPM) has 28 more torque (in Nm) than 1986 Daihatsu Rocky. (157 Nm @ 3000 RPM). This means 1998 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1986 Daihatsu Rocky.
Compare all specifications:
| 1986 Daihatsu Rocky | 1998 Opel Signum | |
| Make | Daihatsu | Opel |
| Model | Rocky | Signum |
| Year Released | 1986 | 1998 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1909 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 87 HP | 99 HP |
| Engine RPM | 4600 RPM | 3120 RPM |
| Torque | 157 Nm | 185 Nm |
| Torque RPM | 3000 RPM | 1500 RPM |
| Drive Type | 4WD | Front |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1350 kg | 1595 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 |
