2009 Acura RDX vs. 2011 Opel Astra
To start off, 2011 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Acura RDX. In addition, the cost of maintenance, including insurance, on 2009 Acura RDX would be higher. At 2,300 cc (4 cylinders), 2009 Acura RDX is equipped with a bigger engine. In terms of performance, 2009 Acura RDX (240 HP @ 6000 RPM) has 117 more horse power than 2011 Opel Astra. (123 HP @ 4000 RPM). In normal driving conditions, 2009 Acura RDX should accelerate faster than 2011 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Acura RDX weights approximately 52 kg more than 2011 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Acura RDX is four wheel drive (4WD), it will have significant more traction and grip than 2011 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2009 Acura RDX 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 Acura RDX (353 Nm @ 4500 RPM) has 73 more torque (in Nm) than 2011 Opel Astra. (280 Nm @ 2000 RPM). This means 2009 Acura RDX will have an easier job in driving up hills or pulling heavy equipment than 2011 Opel Astra.
Compare all specifications:
| 2009 Acura RDX | 2011 Opel Astra | |
| Make | Acura | Opel |
| Model | RDX | Astra |
| Year Released | 2009 | 2011 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2300 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 240 HP | 123 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 353 Nm | 280 Nm |
| Torque RPM | 4500 RPM | 2000 RPM |
| Engine Compression Ratio | 11.0:1 | 17.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1398 kg |
| Vehicle Length | 4600 mm | 4260 mm |
| Vehicle Width | 1880 mm | 1760 mm |
| Vehicle Height | 1660 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 12.4 L/100km | 6 L/100km |
| Fuel Tank Capacity | 68 L | 52 L |
