2007 BMW X5 vs. 2005 Buick Century
To start off, 2007 BMW X5 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Buick Century. In addition, the cost of maintenance, including insurance, on 2005 Buick Century would be higher. At 3,135 cc (6 cylinders), 2005 Buick Century is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (260 HP @ 6600 RPM) has 84 more horse power than 2005 Buick Century. (176 HP @ 5200 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 2005 Buick Century. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 430 kg more than 2005 Buick Century. 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 2005 Buick Century. 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 (305 Nm @ 2750 RPM) has 41 more torque (in Nm) than 2005 Buick Century. (264 Nm @ 4000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2005 Buick Century.
Compare all specifications:
| 2007 BMW X5 | 2005 Buick Century | |
| Make | BMW | Buick |
| Model | X5 | Century |
| Year Released | 2007 | 2005 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 3135 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 260 HP | 176 HP |
| Engine RPM | 6600 RPM | 5200 RPM |
| Torque | 305 Nm | 264 Nm |
| Torque RPM | 2750 RPM | 4000 RPM |
| Engine Compression Ratio | 10.7:1 | 9.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1950 kg | 1520 kg |
| Vehicle Length | 4860 mm | 4950 mm |
| Vehicle Width | 1940 mm | 1850 mm |
| Vehicle Height | 1940 mm | 1440 mm |
| Wheelbase Size | 2940 mm | 2780 mm |
| Fuel Tank Capacity | 70 L | 64 L |
