2006 GMC Sierra vs. 2003 Mazda RX-8
To start off, 2006 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Mazda RX-8. In addition, the cost of maintenance, including insurance, on 2003 Mazda RX-8 would be higher. At 5,358 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (295 HP @ 5200 RPM) has 67 more horse power than 2003 Mazda RX-8. (228 HP @ 8200 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2003 Mazda RX-8.
Let's talk about torque, 2006 GMC Sierra (454 Nm @ 4000 RPM) has 243 more torque (in Nm) than 2003 Mazda RX-8. (211 Nm @ 5500 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda RX-8.
Compare all specifications:
| 2006 GMC Sierra | 2003 Mazda RX-8 | |
| Make | GMC | Mazda |
| Model | Sierra | RX-8 |
| Year Released | 2006 | 2003 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5358 cc | 1308 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 295 HP | 228 HP |
| Engine RPM | 5200 RPM | 8200 RPM |
| Torque | 454 Nm | 211 Nm |
| Torque RPM | 4000 RPM | 5500 RPM |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Fuel Type | Gasoline / Electric Hybrid | Gasoline - Premium |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5850 mm | 4440 mm |
| Vehicle Width | 2000 mm | 1780 mm |
| Vehicle Height | 1810 mm | 1350 mm |
| Wheelbase Size | 3650 mm | 2710 mm |
| Fuel Consumption Overall | 12.4 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 98 L | 61 L |
