2006 GMC Sierra vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2006 GMC Sierra 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 191 more horse power than 2007 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2007 Opel Astra.
Let's talk about torque, 2006 GMC Sierra (454 Nm @ 4000 RPM) has 304 more torque (in Nm) than 2007 Opel Astra. (150 Nm @ 3900 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2006 GMC Sierra | 2007 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2006 | 2007 |
| Body Type | Pickup | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5358 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 295 HP | 104 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 454 Nm | 150 Nm |
| Torque RPM | 4000 RPM | 3900 RPM |
| Engine Bore Size | 96 mm | 79 mm |
| Engine Stroke Size | 92 mm | 81.5 mm |
| Engine Compression Ratio | 9.5:1 | 10.5:1 |
| Fuel Type | Gasoline / Electric Hybrid | Gasoline - Premium |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5850 mm | 4520 mm |
| Vehicle Width | 2000 mm | 1800 mm |
| Vehicle Height | 1810 mm | 1510 mm |
| Wheelbase Size | 3650 mm | 2710 mm |
| Fuel Consumption Overall | 12.4 L/100km | 6.7 L/100km |
| Fuel Tank Capacity | 98 L | 52 L |
