2007 BMW 645 vs. 2012 Porsche 911
To start off, 2012 Porsche 911 is newer by 5 year(s). Which means there will be less support and parts availability for 2007 BMW 645. In addition, the cost of maintenance, including insurance, on 2007 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2007 BMW 645 is equipped with a bigger engine. In terms of performance, 2012 Porsche 911 (408 HP @ 7300 RPM) has 80 more horse power than 2007 BMW 645. (328 HP @ 6100 RPM) In normal driving conditions, 2012 Porsche 911 should accelerate faster than 2007 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 645 weights approximately 270 kg more than 2012 Porsche 911.
Because 2012 Porsche 911 is all wheel drive (AWD), it will have significant more traction and grip than 2007 BMW 645. In wet, icy, snow, or gravel driving conditions, 2012 Porsche 911 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 645 (450 Nm @ 3600 RPM) has 30 more torque (in Nm) than 2012 Porsche 911. (420 Nm @ 4200 RPM). This means 2007 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2012 Porsche 911.
Compare all specifications:
| 2007 BMW 645 | 2012 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 645 | 911 |
| Year Released | 2007 | 2012 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 4398 cc | 3800 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 408 HP |
| Engine RPM | 6100 RPM | 7300 RPM |
| Torque | 450 Nm | 420 Nm |
| Torque RPM | 3600 RPM | 4200 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1420 kg |
| Vehicle Length | 4830 mm | 4460 mm |
| Vehicle Width | 1860 mm | 1852 mm |
| Vehicle Height | 1380 mm | 1300 mm |
| Wheelbase Size | 2790 mm | 2350 mm |
| Fuel Tank Capacity | 70 L | 67 L |
