2009 BMW X3 vs. 2007 Cadillac STS
To start off, 2009 BMW X3 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2007 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 131 more horse power than 2009 BMW X3. (189 HP @ 6000 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2009 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X3 weights approximately 177 kg more than 2007 Cadillac STS.
Because 2009 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2009 BMW X3 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 182 more torque (in Nm) than 2009 BMW X3. (245 Nm @ 3500 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X3.
Compare all specifications:
| 2009 BMW X3 | 2007 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | X3 | STS |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 320 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 245 Nm | 427 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Bore Size | 84.1 mm | 93 mm |
| Engine Stroke Size | 75 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1815 kg | 1638 kg |
| Vehicle Length | 4570 mm | 4990 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1680 mm | 1470 mm |
| Wheelbase Size | 2800 mm | 2960 mm |
| Fuel Consumption Overall | 11.2 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 67 L | 64 L |
