2003 Kia Sorento vs. 2007 BMW Z4
To start off, 2007 BMW Z4 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 2,492 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (189 HP @ 6000 RPM) has 51 more horse power than 2003 Kia Sorento. (138 HP @ 3800 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 Kia Sorento. With that said, vehicle weight also plays an important factor in acceleration. 2003 Kia Sorento weights approximately 645 kg more than 2007 BMW Z4.
Because 2003 Kia Sorento is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. 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 69 more torque (in Nm) than 2007 BMW Z4. (245 Nm @ 3500 RPM). This means 2003 Kia Sorento will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2003 Kia Sorento | 2007 BMW Z4 | |
| Make | Kia | BMW |
| Model | Sorento | Z4 |
| Year Released | 2003 | 2007 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2359 cc | 2492 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 189 HP |
| Engine RPM | 3800 RPM | 6000 RPM |
| Torque | 314 Nm | 245 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Bore Size | 91 mm | 84 mm |
| Engine Stroke Size | 96 mm | 75 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1980 kg | 1335 kg |
| Vehicle Length | 4500 mm | 4100 mm |
| Vehicle Width | 1840 mm | 1790 mm |
| Vehicle Height | 1710 mm | 1310 mm |
| Wheelbase Size | 2670 mm | 2500 mm |
| Fuel Tank Capacity | 80 L | 55 L |
