2005 Audi A8 vs. 2011 Acura RDX
To start off, 2011 Acura RDX is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,134 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (322 HP @ 3750 RPM) has 82 more horse power than 2011 Acura RDX. (240 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2011 Acura RDX. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 162 kg more than 2011 Acura RDX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2005 Audi A8 (650 Nm @ 1600 RPM) has 298 more torque (in Nm) than 2011 Acura RDX. (352 Nm @ 4500 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2011 Acura RDX.
Compare all specifications:
| 2005 Audi A8 | 2011 Acura RDX | |
| Make | Audi | Acura |
| Model | A8 | RDX |
| Year Released | 2005 | 2011 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4134 cc | 2300 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 240 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 650 Nm | 352 Nm |
| Torque RPM | 1600 RPM | 4500 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1945 kg | 1783 kg |
| Vehicle Length | 5070 mm | 4636 mm |
| Vehicle Width | 1900 mm | 1869 mm |
| Vehicle Height | 1450 mm | 1654 mm |
| Wheelbase Size | 2950 mm | 2649 mm |
| Fuel Tank Capacity | 90 L | 68 L |
