1984 BMW M6 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 23 year(s). Which means there will be less support and parts availability for 1984 BMW M6. In addition, the cost of maintenance, including insurance, on 1984 BMW M6 would be higher. At 3,453 cc (6 cylinders), 1984 BMW M6 is equipped with a bigger engine. In terms of performance, 1984 BMW M6 (282 HP @ 6500 RPM) has 67 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 1984 BMW M6 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1984 BMW M6 weights approximately 5 kg more than 2007 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1984 BMW M6 (334 Nm @ 4500 RPM) has 84 more torque (in Nm) than 2007 BMW 525. (250 Nm @ 2900 RPM). This means 1984 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525. 2007 BMW 525 has automatic transmission and 1984 BMW M6 has manual transmission. 1984 BMW M6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1984 BMW M6 | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | M6 | 525 |
| Year Released | 1984 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3453 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 215 HP |
| Engine RPM | 6500 RPM | 6500 RPM |
| Torque | 334 Nm | 250 Nm |
| Torque RPM | 4500 RPM | 2900 RPM |
| Engine Bore Size | 93.4 mm | 82 mm |
| Engine Stroke Size | 84 mm | 78.8 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1505 kg | 1500 kg |
| Vehicle Length | 4760 mm | 4850 mm |
| Vehicle Width | 1730 mm | 1470 mm |
| Vehicle Height | 1360 mm | 1850 mm |
| Wheelbase Size | 2630 mm | 2890 mm |
| Fuel Tank Capacity | 70 L | 70 L |
