2004 BMW 525 vs. 2009 BMW 135
To start off, 2009 BMW 135 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 2,979 cc (6 cylinders), 2009 BMW 135 is equipped with a bigger engine. In terms of performance, 2009 BMW 135 (302 HP @ 5800 RPM) has 109 more horse power than 2004 BMW 525. (193 HP @ 6100 RPM) In normal driving conditions, 2009 BMW 135 should accelerate faster than 2004 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 525 weights approximately 336 kg more than 2009 BMW 135.
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 135 (400 Nm @ 1300 RPM) has 155 more torque (in Nm) than 2004 BMW 525. (245 Nm @ 3500 RPM). This means 2009 BMW 135 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 525.
Compare all specifications:
| 2004 BMW 525 | 2009 BMW 135 | |
| Make | BMW | BMW |
| Model | 525 | 135 |
| Year Released | 2004 | 2009 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 193 HP | 302 HP |
| Engine RPM | 6100 RPM | 5800 RPM |
| Torque | 245 Nm | 400 Nm |
| Torque RPM | 3500 RPM | 1300 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 75 mm | 89.6 mm |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Top Speed | 232 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 5.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1656 kg | 1320 kg |
| Vehicle Length | 4810 mm | 4370 mm |
| Vehicle Width | 1810 mm | 1420 mm |
| Vehicle Height | 1450 mm | 1760 mm |
| Wheelbase Size | 2730 mm | 2670 mm |
| Fuel Consumption Overall | 9.8 L/100km | 7.2 L/100km |
| Fuel Tank Capacity | 70 L | 53 L |
