2007 Hummer H2 vs. 2003 Mazda 3
To start off, 2007 Hummer H2 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Mazda 3. In addition, the cost of maintenance, including insurance, on 2003 Mazda 3 would be higher. At 5,998 cc (8 cylinders), 2007 Hummer H2 is equipped with a bigger engine. In terms of performance, 2007 Hummer H2 (325 HP @ 5200 RPM) has 182 more horse power than 2003 Mazda 3. (143 HP @ 6000 RPM). In normal driving conditions, 2007 Hummer H2 should accelerate faster than 2003 Mazda 3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Hummer H2 weights approximately 1593 kg more than 2003 Mazda 3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Mazda 3. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Hummer H2 (495 Nm @ 4000 RPM) has 308 more torque (in Nm) than 2003 Mazda 3. (187 Nm @ 4500 RPM). This means 2007 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 3. 2007 Hummer H2 has automatic transmission and 2003 Mazda 3 has manual transmission. 2003 Mazda 3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Hummer H2 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Hummer H2 | 2003 Mazda 3 | |
| Make | Hummer | Mazda |
| Model | H2 | 3 |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 1970 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 325 HP | 143 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 495 Nm | 187 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 101.6 mm | 87.5 mm |
| Engine Stroke Size | 91.9 mm | 83.1 mm |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2903 kg | 1310 kg |
| Vehicle Length | 4830 mm | 4430 mm |
| Vehicle Width | 2070 mm | 1760 mm |
| Vehicle Height | 2020 mm | 1470 mm |
| Wheelbase Size | 3130 mm | 2730 mm |
| Fuel Consumption Overall | 13.8 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 121 L | 55 L |
