2005 GMC Sierra vs. 2011 Opel Astra
To start off, 2011 Opel Astra is newer by 6 year(s). Which means there will be less support and parts availability for 2005 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2005 GMC Sierra would be higher. At 5,965 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (321 HP @ 5000 RPM) has 82 more horse power than 2011 Opel Astra. (239 HP @ 5600 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2011 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 877 kg more than 2011 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2011 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 GMC Sierra (370 Nm @ 4000 RPM) has 50 more torque (in Nm) than 2011 Opel Astra. (320 Nm @ 2400 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2011 Opel Astra. 2005 GMC Sierra has automatic transmission and 2011 Opel Astra has manual transmission. 2011 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 GMC Sierra | 2011 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2005 | 2011 |
| Body Type | Pickup | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 239 HP |
| Engine RPM | 5000 RPM | 5600 RPM |
| Torque | 370 Nm | 320 Nm |
| Torque RPM | 4000 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 2270 kg | 1393 kg |
| Vehicle Length | 5790 mm | 4300 mm |
| Vehicle Width | 2000 mm | 1760 mm |
| Vehicle Height | 1850 mm | 1410 mm |
| Wheelbase Size | 3650 mm | 2620 mm |
| Fuel Consumption Overall | 13.1 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 117 L | 52 L |
