2003 Opel Astra vs. 2009 GMC Sierra
To start off, 2009 GMC Sierra is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Opel Astra. In addition, the cost of maintenance, including insurance, on 2003 Opel Astra would be higher. At 6,000 cc (8 cylinders), 2009 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 GMC Sierra (364 HP @ 5400 RPM) has 219 more horse power than 2003 Opel Astra. (145 HP @ 5800 RPM) In normal driving conditions, 2009 GMC Sierra should accelerate faster than 2003 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 GMC Sierra weights approximately 1361 kg more than 2003 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 GMC Sierra (506 Nm @ 4400 RPM) has 303 more torque (in Nm) than 2003 Opel Astra. (203 Nm @ 4000 RPM). This means 2009 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra.
Compare all specifications:
| 2003 Opel Astra | 2009 GMC Sierra | |
| Make | Opel | GMC |
| Model | Astra | Sierra |
| Year Released | 2003 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2198 cc | 6000 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 364 HP |
| Engine RPM | 5800 RPM | 5400 RPM |
| Torque | 203 Nm | 506 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Compression Ratio | 10.0:1 | 10.2:1 |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1298 kg | 2659 kg |
| Vehicle Length | 4120 mm | 5710 mm |
| Vehicle Width | 1720 mm | 2040 mm |
| Vehicle Height | 1430 mm | 1940 mm |
| Wheelbase Size | 2500 mm | 3380 mm |
| Fuel Consumption Overall | 8.4 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 52 L | 129 L |
