2006 GMC Sierra vs. 2003 Opel Astra
To start off, 2006 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Astra. In addition, the cost of maintenance, including insurance, on 2003 Opel Astra 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 150 more horse power than 2003 Opel Astra. (145 HP @ 5800 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2003 Opel Astra.
Let's talk about torque, 2006 GMC Sierra (454 Nm @ 4000 RPM) has 251 more torque (in Nm) than 2003 Opel Astra. (203 Nm @ 4000 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra.
Compare all specifications:
| 2006 GMC Sierra | 2003 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2006 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5358 cc | 2198 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 295 HP | 145 HP |
| Engine RPM | 5200 RPM | 5800 RPM |
| Torque | 454 Nm | 203 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 96 mm | 86 mm |
| Engine Stroke Size | 92 mm | 94.6 mm |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5850 mm | 4120 mm |
| Vehicle Width | 2000 mm | 1720 mm |
| Vehicle Height | 1810 mm | 1430 mm |
| Wheelbase Size | 3650 mm | 2500 mm |
| Fuel Consumption Highway | 11.2 L/100km | 6.5 L/100km |
| Fuel Consumption City | 13.1 L/100km | 11.6 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 98 L | 52 L |
