2004 Kia Optima vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Kia Optima. In addition, the cost of maintenance, including insurance, on 2004 Kia Optima would be higher. At 2,671 cc (6 cylinders), 2004 Kia Optima is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (189 HP @ 6000 RPM) has 19 more horse power than 2004 Kia Optima. (170 HP @ 4000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2004 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2004 Kia Optima weights approximately 152 kg more than 2007 BMW Z4.
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, 2004 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, both vehicles can yield 245 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
2004 Kia Optima | 2007 BMW Z4 | |
Make | Kia | BMW |
Model | Optima | Z4 |
Year Released | 2004 | 2007 |
Body Type | Sedan | Convertible |
Engine Position | Front | Front |
Engine Size | 2671 cc | 2492 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 170 HP | 189 HP |
Engine RPM | 4000 RPM | 6000 RPM |
Torque | 245 Nm | 245 Nm |
Engine Bore Size | 87 mm | 84 mm |
Engine Stroke Size | 75 mm | 75 mm |
Engine Compression Ratio | 10.0:1 | 11.0:1 |
Drive Type | Front | Rear |
Number of Seats | 5 seats | 2 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1487 kg | 1335 kg |
Vehicle Length | 4730 mm | 4100 mm |
Vehicle Width | 1820 mm | 1790 mm |
Vehicle Height | 1420 mm | 1310 mm |
Wheelbase Size | 2720 mm | 2500 mm |
Fuel Consumption Highway | 8.7 L/100km | 8.4 L/100km |
Fuel Consumption City | 11.8 L/100km | 11.8 L/100km |
Fuel Consumption Overall | 10.2 L/100km | 9 L/100km |
Fuel Tank Capacity | 65 L | 55 L |