2003 Opel Astra vs. 2013 GMC Sierra
To start off, 2013 GMC Sierra is newer by 10 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), 2013 GMC Sierra is equipped with a bigger engine. In terms of performance, 2013 GMC Sierra (327 HP @ 5100 RPM) has 153 more horse power than 2003 Opel Astra. (174 HP @ 5200 RPM) In normal driving conditions, 2013 GMC Sierra should accelerate faster than 2003 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2013 GMC Sierra weights approximately 1118 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 2013 GMC Sierra is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2013 GMC Sierra. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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, 2013 GMC Sierra (498 Nm @ 4100 RPM) has 247 more torque (in Nm) than 2003 Opel Astra. (251 Nm @ 1950 RPM). This means 2013 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 | 2013 GMC Sierra | |
| Make | Opel | GMC |
| Model | Astra | Sierra |
| Year Released | 2003 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 6000 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 174 HP | 327 HP |
| Engine RPM | 5200 RPM | 5100 RPM |
| Torque | 251 Nm | 498 Nm |
| Torque RPM | 1950 RPM | 4100 RPM |
| Engine Bore Size | 86 mm | 101 mm |
| Engine Stroke Size | 86 mm | 92 mm |
| Drive Type | Front | Rear |
| Transmission Type | Manual | CVT |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1410 kg | 2528 kg |
| Vehicle Length | 4260 mm | 5847 mm |
| Vehicle Width | 1760 mm | 2032 mm |
| Vehicle Height | 1470 mm | 1875 mm |
| Wheelbase Size | 2740 mm | 3645 mm |
| Fuel Consumption | 6.9 L/100km | 8.4 L/100km |
| Fuel Consumption City | 12.9 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 52 L | 98 L |
