2009 Hummer H2 vs. 2007 Porsche Cayman
To start off, 2009 Hummer H2 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Porsche Cayman. In addition, the cost of maintenance, including insurance, on 2007 Porsche Cayman 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 148 more horse power than 2007 Porsche Cayman. (245 HP @ 6500 RPM). In normal driving conditions, 2009 Hummer H2 should accelerate faster than 2007 Porsche Cayman. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H2 weights approximately 1488 kg more than 2007 Porsche Cayman. 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 2007 Porsche Cayman. 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 291 more torque (in Nm) than 2007 Porsche Cayman. (273 Nm @ 4600 RPM). This means 2009 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche Cayman. 2009 Hummer H2 has automatic transmission and 2007 Porsche Cayman has manual transmission. 2007 Porsche Cayman will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Hummer H2 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Hummer H2 | 2007 Porsche Cayman | |
| Make | Hummer | Porsche |
| Model | H2 | Cayman |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 6199 cc | 2686 cc |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 393 HP | 245 HP |
| Engine RPM | 5700 RPM | 6500 RPM |
| Torque | 564 Nm | 273 Nm |
| Torque RPM | 4300 RPM | 4600 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2903 kg | 1415 kg |
| Vehicle Length | 4830 mm | 4350 mm |
| Vehicle Width | 2070 mm | 1310 mm |
| Vehicle Height | 2020 mm | 1810 mm |
| Wheelbase Size | 3130 mm | 2420 mm |
| Fuel Consumption Overall | 15.7 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 121 L | 64 L |
