2006 BMW Z4 vs. 2005 Kia Opirus
To start off, 2006 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Kia Opirus. In addition, the cost of maintenance, including insurance, on 2005 Kia Opirus would be higher. At 3,497 cc (6 cylinders), 2005 Kia Opirus is equipped with a bigger engine. In terms of performance, 2005 Kia Opirus (200 HP @ 5500 RPM) has 11 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2005 Kia Opirus should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Opirus weights approximately 562 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 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 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2005 Kia Opirus, 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, 2005 Kia Opirus (298 Nm @ 3500 RPM) has 53 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2005 Kia Opirus will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2005 Kia Opirus has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Kia Opirus will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2005 Kia Opirus | |
| Make | BMW | Kia |
| Model | Z4 | Opirus |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 200 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 245 Nm | 298 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 235 km/hour | 215 km/hour |
| Acceleration 0-100mph | 7 seconds | 9.2 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1897 kg |
| Vehicle Length | 4100 mm | 4990 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1310 mm | 1490 mm |
| Wheelbase Size | 2500 mm | 2670 mm |
| Fuel Consumption Overall | 9 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
