2007 BMW X5 vs. 2007 Kia Optima
To start off, both 2007 BMW X5 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 4,798 cc (8 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (342 HP @ 5700 RPM) has 157 more horse power than 2007 Kia Optima. (185 HP @ 6000 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 2007 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 713 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 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 BMW X5 (480 Nm @ 3700 RPM) has 233 more torque (in Nm) than 2007 Kia Optima. (247 Nm @ 4000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima.
Compare all specifications:
| 2007 BMW X5 | 2007 Kia Optima | |
| Make | BMW | Kia |
| Model | X5 | Optima |
| Year Released | 2007 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4798 cc | 2654 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 185 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 480 Nm | 247 Nm |
| Torque RPM | 3700 RPM | 4000 RPM |
| Engine Bore Size | 88.3 mm | 86.7 mm |
| Engine Stroke Size | 93 mm | 75 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2200 kg | 1487 kg |
| Vehicle Length | 4670 mm | 4740 mm |
| Vehicle Width | 1930 mm | 1810 mm |
| Vehicle Height | 1710 mm | 1490 mm |
| Wheelbase Size | 2830 mm | 2730 mm |
| Fuel Consumption Overall | 13.5 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 93 L | 62 L |
