2006 GMC Sierra vs. 2006 Opel Astra
To start off, both 2006 GMC Sierra and 2006 Opel Astra were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. 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 57 more horse power than 2006 Opel Astra. (238 HP @ 5600 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2006 Opel Astra.
Let's talk about torque, 2006 GMC Sierra (454 Nm @ 4000 RPM) has 134 more torque (in Nm) than 2006 Opel Astra. (320 Nm @ 2400 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2006 GMC Sierra | 2006 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2006 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 5358 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 295 HP | 238 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 454 Nm | 320 Nm |
| Torque RPM | 4000 RPM | 2400 RPM |
| Engine Bore Size | 96 mm | 86 mm |
| Engine Stroke Size | 92 mm | 86 mm |
| Engine Compression Ratio | 9.5:1 | 8.8:1 |
| Fuel Type | Gasoline / Electric Hybrid | Gasoline - Premium |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5850 mm | 4300 mm |
| Vehicle Width | 2000 mm | 1760 mm |
| Vehicle Height | 1810 mm | 1410 mm |
| Wheelbase Size | 3650 mm | 2620 mm |
| Fuel Consumption Overall | 12.4 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 98 L | 52 L |
