2006 BMW 730 vs. 2007 Cadillac STS
To start off, 2007 Cadillac STS is newer by 1 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 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (322 HP @ 6400 RPM) has 68 more horse power than 2006 BMW 730. (254 HP @ 6600 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2006 BMW 730.
Because 2007 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 730. In wet, icy, snow, or gravel driving conditions, 2007 Cadillac STS 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 127 more torque (in Nm) than 2006 BMW 730. (300 Nm @ 2500 RPM). This means 2007 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 | 2007 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | 730 | STS |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2994 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 322 HP |
| Engine RPM | 6600 RPM | 6400 RPM |
| Torque | 300 Nm | 427 Nm |
| Torque RPM | 2500 RPM | 4400 RPM |
| Engine Compression Ratio | 10.7:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 244 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 6.2 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1820 kg | 1820 kg |
| Vehicle Length | 5180 mm | 4990 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 | 66 L |
