2009 Cadillac STS vs. 2005 BMW 630
To start off, 2009 Cadillac STS is newer by 4 year(s). Which means there will be less support and parts availability for 2005 BMW 630. In addition, the cost of maintenance, including insurance, on 2005 BMW 630 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 48 more horse power than 2005 BMW 630. (254 HP @ 6600 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2005 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 70 kg more than 2005 BMW 630. 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, 2009 Cadillac STS (369 Nm @ 5200 RPM) has 79 more torque (in Nm) than 2005 BMW 630. (290 Nm @ 2500 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 630.
Compare all specifications:
| 2009 Cadillac STS | 2005 BMW 630 | |
| Make | Cadillac | BMW |
| Model | STS | 630 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 2993 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 254 HP |
| Engine RPM | 6300 RPM | 6600 RPM |
| Torque | 369 Nm | 290 Nm |
| Torque RPM | 5200 RPM | 2500 RPM |
| Engine Compression Ratio | 11.3:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1635 kg | 1565 kg |
| Vehicle Length | 5000 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1380 mm |
| Wheelbase Size | 2960 mm | 2730 mm |
| Fuel Consumption Overall | 11.8 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 64 L | 70 L |
