2007 BMW Z4 vs. 2002 Daihatsu Copen
To start off, 2007 BMW Z4 is newer by 5 year(s). Which means there will be less support and parts availability for 2002 Daihatsu Copen. In addition, the cost of maintenance, including insurance, on 2002 Daihatsu Copen would be higher. At 2,996 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (335 HP @ 7900 RPM) has 273 more horse power than 2002 Daihatsu Copen. (62 HP @ 6000 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2002 Daihatsu Copen. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 480 kg more than 2002 Daihatsu Copen. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2002 Daihatsu Copen, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 BMW Z4 (315 Nm @ 2750 RPM) has 205 more torque (in Nm) than 2002 Daihatsu Copen. (110 Nm @ 3200 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2002 Daihatsu Copen. 2007 BMW Z4 has automatic transmission and 2002 Daihatsu Copen has manual transmission. 2002 Daihatsu Copen will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 2002 Daihatsu Copen | |
| Make | BMW | Daihatsu |
| Model | Z4 | Copen |
| Year Released | 2007 | 2002 |
| Body Type | Convertible | Roadster |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 659 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 335 HP | 62 HP |
| Engine RPM | 7900 RPM | 6000 RPM |
| Torque | 315 Nm | 110 Nm |
| Torque RPM | 2750 RPM | 3200 RPM |
| Engine Compression Ratio | 11.5:1 | 8.2:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1310 kg | 830 kg |
| Vehicle Length | 4100 mm | 3400 mm |
| Vehicle Width | 1790 mm | 1480 mm |
| Vehicle Height | 1310 mm | 1250 mm |
| Wheelbase Size | 2500 mm | 2240 mm |
| Fuel Tank Capacity | 55 L | 40 L |
