2004 BMW 645 vs. 2012 Porsche 911
To start off, 2012 Porsche 911 is newer by 8 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 4,392 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2012 Porsche 911 (530 HP @ 6250 RPM) has 208 more horse power than 2004 BMW 645. (322 HP @ 7400 RPM) In normal driving conditions, 2012 Porsche 911 should accelerate faster than 2004 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 55 kg more than 2012 Porsche 911.
Because 2012 Porsche 911 is all wheel drive (AWD), it will have significant more traction and grip than 2004 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, 2012 Porsche 911 (699 Nm) has 252 more torque (in Nm) than 2004 BMW 645. (447 Nm). This means 2012 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 645.
Compare all specifications:
| 2004 BMW 645 | 2012 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 645 | 911 |
| Year Released | 2004 | 2012 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 4392 cc | 3800 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 530 HP |
| Engine RPM | 7400 RPM | 6250 RPM |
| Torque | 447 Nm | 699 Nm |
| Drive Type | Rear | AWD |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1715 kg | 1660 kg |
| Vehicle Length | 4840 mm | 4478 mm |
| Vehicle Width | 1860 mm | 1852 mm |
| Vehicle Height | 1380 mm | 1300 mm |
| Wheelbase Size | 2790 mm | 2350 mm |
| Fuel Consumption | 9.4 L/100km | 9.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 70 L | 67 L |
