2009 Acura RDX vs. 2009 Audi A4
To start off, both 2009 Acura RDX and 2009 Audi A4 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. 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 29 more horse power than 2009 Audi A4. (211 HP @ 4300 RPM). In normal driving conditions, 2009 Acura RDX should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Acura RDX weights approximately 520 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 3 more torque (in Nm) than 2009 Audi A4. (350 Nm @ 1500 RPM). This means 2009 Acura RDX will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Acura RDX | 2009 Audi A4 | |
| Make | Acura | Audi |
| Model | RDX | A4 |
| Year Released | 2009 | 2009 |
| Body Type | SUV | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2300 cc | 1984 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 240 HP | 211 HP |
| Engine RPM | 6000 RPM | 4300 RPM |
| Torque | 353 Nm | 350 Nm |
| Torque RPM | 4500 RPM | 1500 RPM |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1450 kg | 930 kg |
| Vehicle Length | 4600 mm | 4710 mm |
| Vehicle Width | 1880 mm | 1840 mm |
| Vehicle Height | 1660 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2820 mm |
| Fuel Consumption Highway | 10.7 L/100km | 8.7 L/100km |
| Fuel Consumption City | 13.8 L/100km | 11.2 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 68 L | 70 L |
