2003 GMC Sierra vs. 2009 Hummer H3
To start off, 2009 Hummer H3 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2003 GMC Sierra would be higher. At 4,816 cc (8 cylinders), 2003 GMC Sierra is equipped with a bigger engine. In terms of performance, 2003 GMC Sierra (275 HP) has 32 more horse power than 2009 Hummer H3. (243 HP). In normal driving conditions, 2003 GMC Sierra should accelerate faster than 2009 Hummer H3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H3 weights approximately 286 kg more than 2003 GMC Sierra.
Because 2009 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 GMC Sierra. In wet, icy, snow, or gravel driving conditions, 2009 Hummer H3 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, 2003 GMC Sierra (386 Nm) has 58 more torque (in Nm) than 2009 Hummer H3. (328 Nm). This means 2003 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2009 Hummer H3. 2009 Hummer H3 has automatic transmission and 2003 GMC Sierra has manual transmission. 2003 GMC Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Hummer H3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 GMC Sierra | 2009 Hummer H3 | |
| Make | GMC | Hummer |
| Model | Sierra | H3 |
| Year Released | 2003 | 2009 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 4816 cc | 3653 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 275 HP | 243 HP |
| Torque | 386 Nm | 328 Nm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 3 seats | 5 seats |
| Vehicle Weight | 1945 kg | 2231 kg |
| Vehicle Length | 5650 mm | 4790 mm |
| Vehicle Width | 2000 mm | 1900 mm |
| Vehicle Height | 1810 mm | 2000 mm |
| Wheelbase Size | 3380 mm | 2850 mm |
