2006 GMC Envoy vs. 2005 Opel Astra
To start off, 2006 GMC Envoy is newer by 1 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 5,358 cc (8 cylinders), 2006 GMC Envoy is equipped with a bigger engine. In terms of performance, 2006 GMC Envoy (300 HP @ 5200 RPM) has 203 more horse power than 2005 Opel Astra. (97 HP @ 6000 RPM). In normal driving conditions, 2006 GMC Envoy should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Envoy weights approximately 1325 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 2006 GMC Envoy 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, 2006 GMC Envoy 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, 2006 GMC Envoy (447 Nm @ 4000 RPM) has 305 more torque (in Nm) than 2005 Opel Astra. (142 Nm @ 3600 RPM). This means 2006 GMC Envoy will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2006 GMC Envoy | 2005 Opel Astra | |
| Make | GMC | Opel |
| Model | Envoy | Astra |
| Year Released | 2006 | 2005 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5358 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 300 HP | 97 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 447 Nm | 142 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Compression Ratio | 9.5:1 | 9.8:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2435 kg | 1110 kg |
| Wheelbase Size | 3280 mm | 2700 mm |
| Fuel Consumption Overall | 13.8 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 95 L | 52 L |
