2007 BMW 525 vs. 2005 Kia Optima
To start off, 2007 BMW 525 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Kia Optima. In addition, the cost of maintenance, including insurance, on 2005 Kia Optima would be higher. At 5,497 cc (6 cylinders), 2007 BMW 525 is equipped with a bigger engine. In terms of performance, 2007 BMW 525 (216 HP @ 6500 RPM) has 78 more horse power than 2005 Kia Optima. (138 HP @ 4000 RPM). In normal driving conditions, 2007 BMW 525 should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Optima weights approximately 2 kg more than 2007 BMW 525.
Because 2007 BMW 525 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 525. However, in wet, icy, snow, or gravel driving conditions, 2005 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 525 (250 Nm) has 51 more torque (in Nm) than 2005 Kia Optima. (199 Nm). This means 2007 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 2007 BMW 525 | 2005 Kia Optima | |
| Make | BMW | Kia |
| Model | 525 | Optima |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5497 cc | 2360 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 216 HP | 138 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 250 Nm | 199 Nm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1495 kg | 1497 kg |
| Vehicle Length | 4850 mm | 4730 mm |
| Vehicle Width | 1470 mm | 1820 mm |
| Vehicle Height | 1850 mm | 1420 mm |
| Wheelbase Size | 2890 mm | 2620 mm |
| Fuel Consumption Overall | 7 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 70 L | 65 L |
