2009 BMW Z4 vs. 2007 Kia Optima
To start off, 2009 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Kia Optima. In addition, the cost of maintenance, including insurance, on 2007 Kia Optima would be higher. At 2,979 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (335 HP @ 7900 RPM) has 150 more horse power than 2007 Kia Optima. (185 HP @ 6000 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2007 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 38 kg more than 2007 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 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 2009 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, 2009 BMW Z4 (315 Nm @ 2750 RPM) has 68 more torque (in Nm) than 2007 Kia Optima. (247 Nm @ 4000 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima. 2007 Kia Optima has automatic transmission and 2009 BMW Z4 has manual transmission. 2009 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Kia Optima will be easier to drive especially in heavy traffic.
Compare all specifications:
2009 BMW Z4 | 2007 Kia Optima | |
Make | BMW | Kia |
Model | Z4 | Optima |
Year Released | 2009 | 2007 |
Body Type | Convertible | Sedan |
Engine Position | Front | Front |
Engine Size | 2979 cc | 2654 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 335 HP | 185 HP |
Engine RPM | 7900 RPM | 6000 RPM |
Torque | 315 Nm | 247 Nm |
Torque RPM | 2750 RPM | 4000 RPM |
Fuel Type | Gasoline | Gasoline - Premium |
Drive Type | Rear | Front |
Transmission Type | Manual | Automatic |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1525 kg | 1487 kg |
Vehicle Length | 4100 mm | 4740 mm |
Vehicle Width | 1790 mm | 1810 mm |
Vehicle Height | 1310 mm | 1490 mm |
Wheelbase Size | 2500 mm | 2730 mm |
Fuel Consumption Overall | 9.1 L/100km | 9.4 L/100km |
Fuel Tank Capacity | 55 L | 62 L |