2007 GMC Sierra vs. 2006 Mazda RX-8
To start off, 2007 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Mazda RX-8. In addition, the cost of maintenance, including insurance, on 2006 Mazda RX-8 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 (300 HP @ 4400 RPM) has 72 more horse power than 2006 Mazda RX-8. (228 HP @ 8200 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2006 Mazda RX-8.
Let's talk about torque, 2007 GMC Sierra (488 Nm @ 4000 RPM) has 277 more torque (in Nm) than 2006 Mazda RX-8. (211 Nm @ 5500 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Mazda RX-8. 2007 GMC Sierra has automatic transmission and 2006 Mazda RX-8 has manual transmission. 2006 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 | 2006 Mazda RX-8 | |
| Make | GMC | Mazda |
| Model | Sierra | RX-8 |
| Year Released | 2007 | 2006 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 1308 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 300 HP | 228 HP |
| Engine RPM | 4400 RPM | 8200 RPM |
| Torque | 488 Nm | 211 Nm |
| Torque RPM | 4000 RPM | 5500 RPM |
| Engine Bore Size | 102 mm | 87.5 mm |
| Engine Stroke Size | 92 mm | 85 mm |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Length | 6330 mm | 4440 mm |
| Vehicle Width | 2450 mm | 1780 mm |
| Vehicle Height | 1940 mm | 1350 mm |
| Wheelbase Size | 4010 mm | 2710 mm |
| Fuel Tank Capacity | 129 L | 61 L |
