2006 BMW 525 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 525. In addition, the cost of maintenance, including insurance, on 2006 BMW 525 would be higher. At 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 127 more horse power than 2006 BMW 525. (175 HP @ 4000 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2006 BMW 525.
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, 2006 BMW 525 (400 Nm @ 2000 RPM) has 31 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 2006 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS. 2009 Cadillac STS has automatic transmission and 2006 BMW 525 has manual transmission. 2006 BMW 525 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW 525 | 2009 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | 525 | STS |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 3599 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 302 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 400 Nm | 369 Nm |
| Torque RPM | 2000 RPM | 5200 RPM |
| Engine Compression Ratio | 17.0:1 | 11.3:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4850 mm | 5000 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2960 mm |
| Fuel Consumption Overall | 6.8 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
