2006 BMW Z4 vs. 1985 Daihatsu Rocky
To start off, 2006 BMW Z4 is newer by 21 year(s). Which means there will be less support and parts availability for 1985 Daihatsu Rocky. In addition, the cost of maintenance, including insurance, on 1985 Daihatsu Rocky would be higher. At 2,765 cc (4 cylinders), 1985 Daihatsu Rocky is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 117 more horse power than 1985 Daihatsu Rocky. (72 HP @ 3600 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1985 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 1985 Daihatsu Rocky weights approximately 225 kg more than 2006 BMW Z4.
Because 1985 Daihatsu Rocky is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 1985 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 BMW Z4 (245 Nm @ 3500 RPM) has 74 more torque (in Nm) than 1985 Daihatsu Rocky. (171 Nm @ 2200 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1985 Daihatsu Rocky.
Compare all specifications:
| 2006 BMW Z4 | 1985 Daihatsu Rocky | |
| Make | BMW | Daihatsu |
| Model | Z4 | Rocky |
| Year Released | 2006 | 1985 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2765 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 189 HP | 72 HP |
| Engine RPM | 6000 RPM | 3600 RPM |
| Torque | 245 Nm | 171 Nm |
| Torque RPM | 3500 RPM | 2200 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Rear | 4WD |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1335 kg | 1560 kg |
| Vehicle Length | 4100 mm | 4110 mm |
| Vehicle Width | 1790 mm | 1590 mm |
| Vehicle Height | 1310 mm | 1920 mm |
| Wheelbase Size | 2500 mm | 2540 mm |
