2006 BMW 730 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 730. In addition, the cost of maintenance, including insurance, on 2006 BMW 730 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 2006 BMW 730. (254 HP @ 6600 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2006 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 730 weights approximately 185 kg more than 2009 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 Cadillac STS (369 Nm @ 5200 RPM) has 69 more torque (in Nm) than 2006 BMW 730. (300 Nm @ 2500 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 730.
Compare all specifications:
| 2006 BMW 730 | 2009 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | 730 | STS |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2994 cc | 3599 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 302 HP |
| Engine RPM | 6600 RPM | 6300 RPM |
| Torque | 300 Nm | 369 Nm |
| Torque RPM | 2500 RPM | 5200 RPM |
| Engine Compression Ratio | 10.7:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1820 kg | 1635 kg |
| Vehicle Length | 5180 mm | 5000 mm |
| Vehicle Width | 1910 mm | 1850 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 3140 mm | 2960 mm |
| Fuel Consumption Overall | 10.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 88 L | 64 L |
