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 4,293 cc (6 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (195 HP @ 4600 RPM) has 106 more horse power than 2007 Opel Astra. (89 HP @ 5600 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1087 kg more than 2007 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2007 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2006 GMC Sierra will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 GMC Sierra (353 Nm @ 2800 RPM) has 228 more torque (in Nm) than 2007 Opel Astra. (125 Nm @ 4000 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 | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 1362 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 195 HP | 89 HP |
| Engine RPM | 4600 RPM | 5600 RPM |
| Torque | 353 Nm | 125 Nm |
| Torque RPM | 2800 RPM | 4000 RPM |
| Engine Compression Ratio | 9.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Number of Seats | 3 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 2317 kg | 1230 kg |
| Vehicle Length | 5710 mm | 4300 mm |
| Vehicle Width | 2000 mm | 1760 mm |
| Vehicle Height | 1810 mm | 1440 mm |
| Wheelbase Size | 3380 mm | 2620 mm |
| Fuel Consumption Overall | 13.1 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 129 L | 52 L |
