2006 Cadillac STS vs. 2009 Hummer H2
To start off, 2009 Hummer H2 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 6,199 cc (8 cylinders), 2009 Hummer H2 is equipped with a bigger engine. In terms of performance, 2009 Hummer H2 (393 HP @ 5700 RPM) has 140 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM) In normal driving conditions, 2009 Hummer H2 should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H2 weights approximately 1121 kg more than 2006 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2009 Hummer H2 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, 2009 Hummer H2 (564 Nm @ 4300 RPM) has 222 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2009 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 2009 Hummer H2 | |
| Make | Cadillac | Hummer |
| Model | STS | H2 |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 6199 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 253 HP | 393 HP |
| Engine RPM | 6500 RPM | 5700 RPM |
| Torque | 342 Nm | 564 Nm |
| Torque RPM | 3200 RPM | 4300 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1782 kg | 2903 kg |
| Vehicle Length | 4990 mm | 4830 mm |
| Vehicle Width | 1850 mm | 2070 mm |
| Vehicle Height | 1470 mm | 2020 mm |
| Wheelbase Size | 2960 mm | 3130 mm |
| Fuel Consumption Overall | 12.4 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 66 L | 121 L |
