2005 GMC Sierra vs. 2005 Opel Astra
To start off, both 2005 GMC Sierra and 2005 Opel Astra were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. 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 224 more horse power than 2005 Opel Astra. (97 HP @ 6000 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 1106 kg more than 2005 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 2005 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 228 more torque (in Nm) than 2005 Opel Astra. (142 Nm @ 3600 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra. 2005 GMC Sierra has automatic transmission and 2005 Opel Astra has manual transmission. 2005 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 | 2005 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2005 | 2005 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 97 HP |
| Engine RPM | 5000 RPM | 6000 RPM |
| Torque | 370 Nm | 142 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2270 kg | 1164 kg |
| Wheelbase Size | 3650 mm | 2610 mm |
| Fuel Consumption Overall | 13.1 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 117 L | 52 L |
