2005 BMW 645 vs. 2007 Saab 9-7X
To start off, 2007 Saab 9-7X is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 5,326 cc (8 cylinders), 2007 Saab 9-7X is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 26 more horse power than 2007 Saab 9-7X. (300 HP @ 5200 RPM). In normal driving conditions, 2005 BMW 645 should accelerate faster than 2007 Saab 9-7X.
Because 2007 Saab 9-7X is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 645. In wet, icy, snow, or gravel driving conditions, 2007 Saab 9-7X 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, both vehicles can yield 447 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2007 Saab 9-7X has automatic transmission and 2005 BMW 645 has manual transmission. 2005 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Saab 9-7X will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW 645 | 2007 Saab 9-7X | |
| Make | BMW | Saab |
| Model | 645 | 9-7X |
| Year Released | 2005 | 2007 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 5326 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 326 HP | 300 HP |
| Engine RPM | 6100 RPM | 5200 RPM |
| Torque | 447 Nm | 447 Nm |
| Torque RPM | 3600 RPM | 4000 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4830 mm | 4910 mm |
| Vehicle Width | 1860 mm | 1920 mm |
| Vehicle Height | 1380 mm | 1750 mm |
| Wheelbase Size | 2890 mm | 2880 mm |
| Fuel Consumption | 10.2 L/100km | 11.2 L/100km |
| Fuel Consumption City | 15.7 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 12.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 83 L |
