2008 BMW M5 vs. 2005 BMW 645
To start off, 2008 BMW M5 is newer by 3 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 4,999 cc (10 cylinders), 2008 BMW M5 is equipped with a bigger engine. In terms of performance, 2008 BMW M5 (500 HP @ 7750 RPM) has 174 more horse power than 2005 BMW 645. (326 HP @ 6100 RPM). In normal driving conditions, 2008 BMW M5 should accelerate faster than 2005 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 140 kg more than 2008 BMW M5.
Because 2008 BMW M5 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, 2008 BMW M5 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, 2008 BMW M5 (519 Nm @ 6100 RPM) has 72 more torque (in Nm) than 2005 BMW 645. (447 Nm @ 3600 RPM). This means 2008 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 645. 2005 BMW 645 has automatic transmission and 2008 BMW M5 has manual transmission. 2008 BMW M5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
2008 BMW M5 | 2005 BMW 645 | |
Make | BMW | BMW |
Model | M5 | 645 |
Year Released | 2008 | 2005 |
Body Type | Sedan | Convertible |
Engine Position | Front | Front |
Engine Size | 4999 cc | 4392 cc |
Engine Cylinders | 10 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 500 HP | 326 HP |
Engine RPM | 7750 RPM | 6100 RPM |
Torque | 519 Nm | 447 Nm |
Torque RPM | 6100 RPM | 3600 RPM |
Engine Compression Ratio | 12.0:1 | 10.5:1 |
Fuel Type | Gasoline | Gasoline - Premium |
Top Speed | 245 km/hour | 250 km/hour |
Acceleration 0-100mph | 4.7 seconds | 6.1 seconds |
Drive Type | 4WD | Rear |
Transmission Type | Manual | Automatic |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1755 kg | 1895 kg |
Vehicle Length | 4870 mm | 4830 mm |
Vehicle Width | 1850 mm | 1860 mm |
Vehicle Height | 1470 mm | 1380 mm |
Wheelbase Size | 2890 mm | 2890 mm |
Fuel Consumption Highway | 13.1 L/100km | 10.2 L/100km |
Fuel Consumption City | 19.6 L/100km | 15.7 L/100km |
Fuel Consumption Overall | 14 L/100km | 12.8 L/100km |
Fuel Tank Capacity | 70 L | 70 L |