2009 Hummer H3 vs. 2003 Mazda 6
To start off, 2009 Hummer H3 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Mazda 6. In addition, the cost of maintenance, including insurance, on 2003 Mazda 6 would be higher. At 3,700 cc (5 cylinders), 2009 Hummer H3 is equipped with a bigger engine. In terms of performance, 2009 Hummer H3 (239 HP @ 5800 RPM) has 95 more horse power than 2003 Mazda 6. (144 HP @ 3500 RPM). In normal driving conditions, 2009 Hummer H3 should accelerate faster than 2003 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H3 weights approximately 709 kg more than 2003 Mazda 6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Mazda 6. 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, 2009 Hummer H3 (327 Nm @ 4600 RPM) has 17 more torque (in Nm) than 2003 Mazda 6. (310 Nm @ 2000 RPM). This means 2009 Hummer H3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 6.
Compare all specifications:
| 2009 Hummer H3 | 2003 Mazda 6 | |
| Make | Hummer | Mazda |
| Model | H3 | 6 |
| Year Released | 2009 | 2003 |
| Body Type | SUV | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3700 cc | 1998 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 239 HP | 144 HP |
| Engine RPM | 5800 RPM | 3500 RPM |
| Torque | 327 Nm | 310 Nm |
| Torque RPM | 4600 RPM | 2000 RPM |
| Engine Bore Size | 95.5 mm | 86 mm |
| Engine Stroke Size | 102 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2194 kg | 1485 kg |
| Vehicle Length | 5410 mm | 4680 mm |
| Vehicle Width | 1910 mm | 1790 mm |
| Vehicle Height | 1840 mm | 1440 mm |
| Wheelbase Size | 3420 mm | 2680 mm |
| Fuel Consumption Overall | 14.9 L/100km | 6.5 L/100km |
| Fuel Tank Capacity | 102 L | 64 L |
