2009 Cadillac STS vs. 2006 BMW 525
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 4,564 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (320 HP @ 6400 RPM) has 105 more horse power than 2006 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2006 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 70 kg more than 2006 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2006 BMW 525 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, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 177 more torque (in Nm) than 2006 BMW 525. (250 Nm @ 2750 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 525.
Compare all specifications:
| 2009 Cadillac STS | 2006 BMW 525 | |
| Make | Cadillac | BMW |
| Model | STS | 525 |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4564 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 215 HP |
| Engine RPM | 6400 RPM | 6500 RPM |
| Torque | 427 Nm | 250 Nm |
| Torque RPM | 4400 RPM | 2750 RPM |
| Engine Compression Ratio | 3.7:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1635 kg | 1565 kg |
| Vehicle Length | 5000 mm | 4850 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Consumption Highway | 9.8 L/100km | 7.4 L/100km |
| Fuel Consumption City | 15.7 L/100km | 13.9 L/100km |
| Fuel Consumption Overall | 13.1 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 64 L | 70 L |
