2005 BMW X5 vs. 2004 Kia Optima
To start off, 2005 BMW X5 is newer by 1 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 2,926 cc (6 cylinders), 2005 BMW X5 is equipped with a bigger engine. In terms of performance, 2005 BMW X5 (215 HP @ 4000 RPM) has 77 more horse power than 2004 Kia Optima. (138 HP @ 3800 RPM). In normal driving conditions, 2005 BMW X5 should accelerate faster than 2004 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 621 kg more than 2004 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2005 BMW X5 will offer significantly more control. 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, 2005 BMW X5 (520 Nm) has 321 more torque (in Nm) than 2004 Kia Optima. (199 Nm). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2004 Kia Optima.
Compare all specifications:
| 2005 BMW X5 | 2004 Kia Optima | |
| Make | BMW | Kia |
| Model | X5 | Optima |
| Year Released | 2005 | 2004 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 2398 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 138 HP |
| Engine RPM | 4000 RPM | 3800 RPM |
| Torque | 520 Nm | 199 Nm |
| Engine Bore Size | 84 mm | 87 mm |
| Engine Stroke Size | 90 mm | 100 mm |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2170 kg | 1549 kg |
| Vehicle Length | 4670 mm | 4730 mm |
| Vehicle Width | 1880 mm | 1820 mm |
| Vehicle Height | 1720 mm | 1420 mm |
| Wheelbase Size | 2830 mm | 2720 mm |
| Fuel Consumption Overall | 8.6 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 93 L | 65 L |
