2007 GMC Sierra vs. 2004 Mazda 6
To start off, 2007 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Mazda 6. In addition, the cost of maintenance, including insurance, on 2004 Mazda 6 would be higher. At 5,998 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (345 HP @ 5200 RPM) has 89 more horse power than 2004 Mazda 6. (256 HP @ 6000 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2004 Mazda 6.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 GMC Sierra (515 Nm @ 4000 RPM) has 135 more torque (in Nm) than 2004 Mazda 6. (380 Nm @ 3000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2004 Mazda 6. 2007 GMC Sierra has automatic transmission and 2004 Mazda 6 has manual transmission. 2004 Mazda 6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 GMC Sierra | 2004 Mazda 6 | |
| Make | GMC | Mazda |
| Model | Sierra | 6 |
| Year Released | 2007 | 2004 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 2261 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 345 HP | 256 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 515 Nm | 380 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Bore Size | 102 mm | 87.5 mm |
| Engine Stroke Size | 92 mm | 94 mm |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5850 mm | 4750 mm |
| Vehicle Width | 2000 mm | 1790 mm |
| Vehicle Height | 1910 mm | 1450 mm |
| Wheelbase Size | 3650 mm | 2680 mm |
