2007 BMW X5 vs. 2011 Kia Optima
To start off, 2011 Kia Optima is newer by 4 year(s). Which means there will be less support and parts availability for 2007 BMW X5. In addition, the cost of maintenance, including insurance, on 2007 BMW X5 would be higher. At 2,993 cc (6 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (202 HP @ 4000 RPM) has 36 more horse power than 2011 Kia Optima. (166 HP @ 6000 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 2011 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 516 kg more than 2011 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 2011 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 @ 2000 RPM) has 271 more torque (in Nm) than 2011 Kia Optima. (209 Nm @ 4250 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2011 Kia Optima. 2011 Kia Optima has automatic transmission and 2007 BMW X5 has manual transmission. 2007 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Kia Optima will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X5 | 2011 Kia Optima | |
| Make | BMW | Kia |
| Model | X5 | Optima |
| Year Released | 2007 | 2011 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2400 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 202 HP | 166 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 480 Nm | 209 Nm |
| Torque RPM | 2000 RPM | 4250 RPM |
| Fuel Type | Diesel | Gasoline / Electric Hybrid |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2099 kg | 1583 kg |
| Vehicle Length | 4670 mm | 4844 mm |
| Vehicle Width | 1720 mm | 1831 mm |
| Vehicle Height | 1880 mm | 1455 mm |
| Wheelbase Size | 2830 mm | 2797 mm |
| Fuel Tank Capacity | 93 L | 65 L |
