2009 BMW 730 vs. 2005 Cadillac STS
To start off, 2009 BMW 730 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2005 Cadillac STS would be higher. At 3,562 cc (6 cylinders), 2005 Cadillac STS is equipped with a bigger engine. In terms of performance, 2005 Cadillac STS (252 HP @ 6500 RPM) has 10 more horse power than 2009 BMW 730. (242 HP @ 4000 RPM) In normal driving conditions, 2005 Cadillac STS should accelerate faster than 2009 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 730 weights approximately 75 kg more than 2005 Cadillac STS.
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 730 (540 Nm @ 1750 RPM) has 198 more torque (in Nm) than 2005 Cadillac STS. (342 Nm @ 3200 RPM). This means 2009 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac STS.
Compare all specifications:
| 2009 BMW 730 | 2005 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | 730 | STS |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3562 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 242 HP | 252 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 540 Nm | 342 Nm |
| Torque RPM | 1750 RPM | 3200 RPM |
| Engine Compression Ratio | 16.5:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 7.2 seconds | 7.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1865 kg | 1790 kg |
| Vehicle Length | 5080 mm | 4990 mm |
| Vehicle Width | 1910 mm | 1850 mm |
| Vehicle Height | 1490 mm | 1470 mm |
| Wheelbase Size | 3080 mm | 2690 mm |
| Fuel Consumption Overall | 7.2 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 80 L | 95 L |
