2007 GMC Sierra vs. 2008 Mazda RX-8
To start off, 2008 Mazda RX-8 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2007 GMC Sierra would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (353 HP @ 5400 RPM) has 121 more horse power than 2008 Mazda RX-8. (232 HP @ 8500 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2008 Mazda RX-8. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1459 kg more than 2008 Mazda RX-8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2008 Mazda RX-8. In wet, icy, snow, or gravel driving conditions, 2007 GMC Sierra 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 GMC Sierra (506 Nm @ 4400 RPM) has 290 more torque (in Nm) than 2008 Mazda RX-8. (216 Nm @ 5500 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2008 Mazda RX-8. 2007 GMC Sierra has automatic transmission and 2008 Mazda RX-8 has manual transmission. 2008 Mazda RX-8 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 | 2008 Mazda RX-8 | |
| Make | GMC | Mazda |
| Model | Sierra | RX-8 |
| Year Released | 2007 | 2008 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 1308 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 353 HP | 232 HP |
| Engine RPM | 5400 RPM | 8500 RPM |
| Torque | 506 Nm | 216 Nm |
| Torque RPM | 4400 RPM | 5500 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2788 kg | 1329 kg |
| Vehicle Length | 6340 mm | 4430 mm |
| Vehicle Width | 2040 mm | 1780 mm |
| Vehicle Height | 1950 mm | 1350 mm |
| Wheelbase Size | 4010 mm | 2710 mm |
| Fuel Consumption Overall | 13.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 129 L | 60 L |
