2007 BMW 523 vs. 2003 Kia Sorento
To start off, 2007 BMW 523 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Kia Sorento. In addition, the cost of maintenance, including insurance, on 2003 Kia Sorento would be higher. At 2,497 cc (6 cylinders), 2007 BMW 523 is equipped with a bigger engine. In terms of performance, 2007 BMW 523 (175 HP @ 5800 RPM) has 37 more horse power than 2003 Kia Sorento. (138 HP @ 3800 RPM). In normal driving conditions, 2007 BMW 523 should accelerate faster than 2003 Kia Sorento. With that said, vehicle weight also plays an important factor in acceleration. 2003 Kia Sorento weights approximately 405 kg more than 2007 BMW 523.
Because 2003 Kia Sorento is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 523. In wet, icy, snow, or gravel driving conditions, 2003 Kia Sorento 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, 2003 Kia Sorento (314 Nm @ 2000 RPM) has 84 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 2003 Kia Sorento will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 2007 BMW 523 | 2003 Kia Sorento | |
| Make | BMW | Kia |
| Model | 523 | Sorento |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2359 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 138 HP |
| Engine RPM | 5800 RPM | 3800 RPM |
| Torque | 230 Nm | 314 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 78.8 mm | 91 mm |
| Engine Stroke Size | 82 mm | 96 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1575 kg | 1980 kg |
| Vehicle Length | 4850 mm | 4500 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1710 mm |
| Wheelbase Size | 2890 mm | 2670 mm |
| Fuel Tank Capacity | 70 L | 80 L |
