2006 GMC Envoy vs. 2006 Opel Astra
To start off, both 2006 GMC Envoy and 2006 Opel Astra were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,359 cc (8 cylinders), 2006 GMC Envoy is equipped with a bigger engine. In terms of performance, 2006 GMC Envoy (300 HP @ 5200 RPM) has 162 more horse power than 2006 Opel Astra. (138 HP @ 6300 RPM). In normal driving conditions, 2006 GMC Envoy should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Envoy weights approximately 920 kg more than 2006 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 2006 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 272 more torque (in Nm) than 2006 Opel Astra. (175 Nm @ 3800 RPM). This means 2006 GMC Envoy will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2006 GMC Envoy | 2006 Opel Astra | |
| Make | GMC | Opel |
| Model | Envoy | Astra |
| Year Released | 2006 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 5359 cc | 1795 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 300 HP | 138 HP |
| Engine RPM | 5200 RPM | 6300 RPM |
| Torque | 447 Nm | 175 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Bore Size | 96 mm | 80.6 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 |
| Number of Seats | 7 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2435 kg | 1515 kg |
| Vehicle Length | 5280 mm | 4480 mm |
| Vehicle Width | 1900 mm | 2030 mm |
| Vehicle Height | 1920 mm | 1420 mm |
| Wheelbase Size | 3280 mm | 2620 mm |
| Fuel Consumption Overall | 13.2 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 95 L | 52 L |
