2007 GMC Sierra vs. 2005 Opel Astra
To start off, 2007 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 5,357 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (315 HP @ 5200 RPM) has 194 more horse power than 2005 Opel Astra. (121 HP @ 5600 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1175 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 2007 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, 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 (458 Nm @ 4400 RPM) has 288 more torque (in Nm) than 2005 Opel Astra. (170 Nm @ 3800 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra. 2007 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. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
2007 GMC Sierra | 2005 Opel Astra | |
Make | GMC | Opel |
Model | Sierra | Astra |
Year Released | 2007 | 2005 |
Engine Position | Front | Front |
Engine Size | 5357 cc | 1796 cc |
Engine Cylinders | 8 cylinders | 4 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 2 valves | 4 valves |
Horse Power | 315 HP | 121 HP |
Engine RPM | 5200 RPM | 5600 RPM |
Torque | 458 Nm | 170 Nm |
Torque RPM | 4400 RPM | 3800 RPM |
Engine Bore Size | 96 mm | 80.5 mm |
Engine Stroke Size | 92 mm | 88.2 mm |
Engine Compression Ratio | 9.4:1 | 10.5:1 |
Fuel Type | Gasoline | Gasoline - Premium |
Drive Type | 4WD | Front |
Transmission Type | Automatic | Manual |
Number of Seats | 6 seats | 4 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Weight | 2435 kg | 1260 kg |
Vehicle Length | 6320 mm | 4260 mm |
Vehicle Width | 2040 mm | 1760 mm |
Vehicle Height | 1880 mm | 1470 mm |
Wheelbase Size | 4010 mm | 2620 mm |
Fuel Consumption Overall | 13.1 L/100km | 7.8 L/100km |
Fuel Tank Capacity | 129 L | 52 L |