2005 Porsche 911 vs. 2011 BMW X5
To start off, 2011 BMW X5 is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Porsche 911. In addition, the cost of maintenance, including insurance, on 2005 Porsche 911 would be higher. At 4,400 cc (8 cylinders), 2011 BMW X5 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 5700 RPM) has 45 more horse power than 2011 BMW X5. (400 HP @ 5500 RPM). In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2011 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X5 weights approximately 850 kg more than 2005 Porsche 911.
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, 2005 Porsche 911 (620 Nm @ 3500 RPM) has 11 more torque (in Nm) than 2011 BMW X5. (609 Nm @ 1750 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2011 BMW X5. 2011 BMW X5 has automatic transmission and 2005 Porsche 911 has manual transmission. 2005 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Porsche 911 | 2011 BMW X5 | |
| Make | Porsche | BMW |
| Model | 911 | X5 |
| Year Released | 2005 | 2011 |
| Body Type | Coupe | SUV |
| Engine Position | Rear | Front |
| Engine Size | 3600 cc | 4400 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 445 HP | 400 HP |
| Engine RPM | 5700 RPM | 5500 RPM |
| Torque | 620 Nm | 609 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1590 kg | 2440 kg |
| Vehicle Length | 4440 mm | 4857 mm |
| Vehicle Width | 1840 mm | 1933 mm |
| Vehicle Height | 1300 mm | 1776 mm |
| Wheelbase Size | 2360 mm | 2934 mm |
| Fuel Tank Capacity | 64 L | 85 L |
