2005 BMW 645 vs. 2003 Porsche 911
To start off, 2005 BMW 645 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Porsche 911. In addition, the cost of maintenance, including insurance, on 2003 Porsche 911 would be higher. At 4,390 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 Porsche 911 (443 HP @ 6000 RPM) has 105 more horse power than 2005 BMW 645. (338 HP @ 6100 RPM) In normal driving conditions, 2003 Porsche 911 should accelerate faster than 2005 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 55 kg more than 2003 Porsche 911.
Because 2003 Porsche 911 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, 2003 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, 2003 Porsche 911 (621 Nm @ 2700 RPM) has 182 more torque (in Nm) than 2005 BMW 645. (439 Nm @ 3600 RPM). This means 2003 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 645.
Compare all specifications:
2005 BMW 645 | 2003 Porsche 911 | |
Make | BMW | Porsche |
Model | 645 | 911 |
Year Released | 2005 | 2003 |
Body Type | Coupe | Convertible |
Engine Position | Front | Rear |
Engine Size | 4390 cc | 3600 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | boxer |
Horse Power | 338 HP | 443 HP |
Engine RPM | 6100 RPM | 6000 RPM |
Torque | 439 Nm | 621 Nm |
Torque RPM | 3600 RPM | 2700 RPM |
Engine Bore Size | 92 mm | 100 mm |
Engine Stroke Size | 83 mm | 76.4 mm |
Top Speed | 250 km/hour | 307 km/hour |
Acceleration 0-100mph | 5.6 seconds | 4.3 seconds |
Drive Type | Rear | 4WD |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 2 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1715 kg | 1660 kg |
Vehicle Length | 4830 mm | 4440 mm |
Vehicle Width | 1860 mm | 1840 mm |
Vehicle Height | 1380 mm | 1300 mm |
Wheelbase Size | 2790 mm | 2360 mm |
Fuel Consumption | 9.4 L/100km | 9.7 L/100km |
Fuel Consumption City | 13.8 L/100km | 19.6 L/100km |
Fuel Consumption Overall | 11.8 L/100km | 13.3 L/100km |
Fuel Tank Capacity | 70 L | 64 L |