2009 BMW M6 vs. 2004 BMW 525
To start off, 2009 BMW M6 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 BMW 525. In addition, the cost of maintenance, including insurance, on 2004 BMW 525 would be higher. At 4,999 cc (10 cylinders), 2009 BMW M6 is equipped with a bigger engine. In terms of performance, 2009 BMW M6 (500 HP @ 7750 RPM) has 311 more horse power than 2004 BMW 525. (189 HP @ 4000 RPM). In normal driving conditions, 2009 BMW M6 should accelerate faster than 2004 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 525 weights approximately 484 kg more than 2009 BMW M6.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2009 BMW M6 (519 Nm @ 6100 RPM) has 119 more torque (in Nm) than 2004 BMW 525. (400 Nm @ 2000 RPM). This means 2009 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 525. 2004 BMW 525 has automatic transmission and 2009 BMW M6 has manual transmission. 2009 BMW M6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW M6 | 2004 BMW 525 | |
| Make | BMW | BMW |
| Model | M6 | 525 |
| Year Released | 2009 | 2004 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4999 cc | 2497 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 500 HP | 189 HP |
| Engine RPM | 7750 RPM | 4000 RPM |
| Torque | 519 Nm | 400 Nm |
| Torque RPM | 6100 RPM | 2000 RPM |
| Engine Compression Ratio | 12.0:1 | 17.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1280 kg | 1764 kg |
| Vehicle Length | 4880 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1500 mm |
| Wheelbase Size | 2790 mm | 2890 mm |
| Fuel Consumption Highway | 14 L/100km | 6.5 L/100km |
| Fuel Consumption City | 21.5 L/100km | 10.9 L/100km |
| Fuel Consumption Overall | 18.2 L/100km | 8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
