2007 GMC Sierra vs. 2004 Opel Astra
To start off, 2007 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Opel Astra. In addition, the cost of maintenance, including insurance, on 2004 Opel Astra would be higher. At 5,997 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (353 HP @ 5400 RPM) has 250 more horse power than 2004 Opel Astra. (103 HP @ 6000 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2004 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 907 kg more than 2004 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 2004 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 356 more torque (in Nm) than 2004 Opel Astra. (150 Nm @ 3900 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Astra. 2007 GMC Sierra has automatic transmission and 2004 Opel Astra has manual transmission. 2004 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 | 2004 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2007 | 2004 |
| Body Type | Pickup | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5997 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 353 HP | 103 HP |
| Engine RPM | 5400 RPM | 6000 RPM |
| Torque | 506 Nm | 150 Nm |
| Torque RPM | 4400 RPM | 3900 RPM |
| Engine Bore Size | 102 mm | 79 mm |
| Engine Stroke Size | 92 mm | 81.5 mm |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 2282 kg | 1375 kg |
| Vehicle Length | 5710 mm | 4290 mm |
| Vehicle Width | 2040 mm | 1720 mm |
| Vehicle Height | 1950 mm | 1470 mm |
| Wheelbase Size | 3380 mm | 2700 mm |
| Fuel Consumption Overall | 11.8 L/100km | 6.7 L/100km |
| Fuel Tank Capacity | 129 L | 52 L |
