2009 Acura MDX vs. 2005 Audi S4
To start off, 2009 Acura MDX is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 39 more horse power than 2009 Acura MDX. (300 HP @ 6000 RPM) In normal driving conditions, 2005 Audi S4 should accelerate faster than 2009 Acura MDX. With that said, vehicle weight also plays an important factor in acceleration. 2009 Acura MDX weights approximately 57 kg more than 2005 Audi S4.
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, 2005 Audi S4 (410 Nm @ 3500 RPM) has 37 more torque (in Nm) than 2009 Acura MDX. (373 Nm @ 5000 RPM). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Acura MDX. 2009 Acura MDX has automatic transmission and 2005 Audi S4 has manual transmission. 2005 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Acura MDX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Acura MDX | 2005 Audi S4 | |
| Make | Acura | Audi |
| Model | MDX | S4 |
| Year Released | 2009 | 2005 |
| Body Type | SUV | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3664 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 300 HP | 339 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 373 Nm | 410 Nm |
| Torque RPM | 5000 RPM | 3500 RPM |
| Engine Compression Ratio | 11.2:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1852 kg | 1795 kg |
| Vehicle Length | 4850 mm | 4580 mm |
| Vehicle Width | 2000 mm | 1790 mm |
| Vehicle Height | 1740 mm | 1450 mm |
| Wheelbase Size | 2760 mm | 2660 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 79 L | 66 L |
