2007 GMC Sierra vs. 2007 Opel Astra
To start off, both 2007 GMC Sierra and 2007 Opel Astra were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (312 HP @ 4400 RPM) has 115 more horse power than 2007 Opel Astra. (197 HP @ 5400 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1293 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 2007 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, 2007 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, 2007 GMC Sierra (506 Nm @ 4400 RPM) has 244 more torque (in Nm) than 2007 Opel Astra. (262 Nm @ 1950 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra. 2007 GMC Sierra has automatic transmission and 2007 Opel Astra has manual transmission. 2007 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 GMC Sierra | 2007 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2007 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 312 HP | 197 HP |
| Engine RPM | 4400 RPM | 5400 RPM |
| Torque | 506 Nm | 262 Nm |
| Torque RPM | 4400 RPM | 1950 RPM |
| Engine Bore Size | 102 mm | 86.1 mm |
| Engine Stroke Size | 92 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2678 kg | 1385 kg |
| Vehicle Length | 5720 mm | 4300 mm |
| Vehicle Width | 2440 mm | 1760 mm |
| Vehicle Height | 1930 mm | 1440 mm |
| Wheelbase Size | 3380 mm | 2620 mm |
| Fuel Consumption Overall | 10.7 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 129 L | 52 L |
