2004 BMW Z4 vs. 2004 Kia Opirus
To start off, both 2004 BMW Z4 and 2004 Kia Opirus were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,497 cc (6 cylinders), 2004 Kia Opirus is equipped with a bigger engine. In terms of performance, 2004 Kia Opirus (196 HP @ 5500 RPM) has 11 more horse power than 2004 BMW Z4. (185 HP @ 6000 RPM) In normal driving conditions, 2004 Kia Opirus should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Kia Opirus weights approximately 464 kg more than 2004 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 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 2004 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Kia Opirus (294 Nm @ 3500 RPM) has 49 more torque (in Nm) than 2004 BMW Z4. (245 Nm @ 3500 RPM). This means 2004 Kia Opirus will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4. 2004 Kia Opirus has automatic transmission and 2004 BMW Z4 has manual transmission. 2004 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Kia Opirus will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 BMW Z4 | 2004 Kia Opirus | |
| Make | BMW | Kia |
| Model | Z4 | Opirus |
| Year Released | 2004 | 2004 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 3497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 185 HP | 196 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 245 Nm | 294 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 93 mm |
| Engine Stroke Size | 75 mm | 85.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1296 kg | 1760 kg |
| Vehicle Length | 4100 mm | 4960 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1300 mm | 1490 mm |
| Wheelbase Size | 2500 mm | 2810 mm |
