2007 BMW Z4 vs. 2007 Kia Optima
To start off, both 2007 BMW Z4 and 2007 Kia Optima were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,996 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (255 HP @ 6600 RPM) has 93 more horse power than 2007 Kia Optima. (162 HP @ 5800 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2007 Kia Optima.
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, 2007 Kia Optima, 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 (298 Nm @ 2750 RPM) has 76 more torque (in Nm) than 2007 Kia Optima. (222 Nm @ 4250 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima.
Compare all specifications:
| 2007 BMW Z4 | 2007 Kia Optima | |
| Make | BMW | Kia |
| Model | Z4 | Optima |
| Year Released | 2007 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 2359 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 162 HP |
| Engine RPM | 6600 RPM | 5800 RPM |
| Torque | 298 Nm | 222 Nm |
| Torque RPM | 2750 RPM | 4250 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4100 mm | 4740 mm |
| Vehicle Width | 1790 mm | 1810 mm |
| Vehicle Height | 1300 mm | 1490 mm |
| Wheelbase Size | 2500 mm | 2730 mm |
| Fuel Consumption Highway | 7.8 L/100km | 6.9 L/100km |
| Fuel Consumption City | 11.8 L/100km | 9.8 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 55 L | 62 L |
