2008 Acura RDX vs. 2007 Audi S4
To start off, 2008 Acura RDX is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 7000 RPM) has 100 more horse power than 2008 Acura RDX. (240 HP @ 4500 RPM) In normal driving conditions, 2007 Audi S4 should accelerate faster than 2008 Acura RDX. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 80 kg more than 2008 Acura RDX. 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, 2007 Audi S4 (410 Nm @ 3500 RPM) has 57 more torque (in Nm) than 2008 Acura RDX. (353 Nm @ 4500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Acura RDX. 2008 Acura RDX has automatic transmission and 2007 Audi S4 has manual transmission. 2007 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Acura RDX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Acura RDX | 2007 Audi S4 | |
| Make | Acura | Audi |
| Model | RDX | S4 |
| Year Released | 2008 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2299 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 240 HP | 340 HP |
| Engine RPM | 4500 RPM | 7000 RPM |
| Torque | 353 Nm | 410 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Engine Compression Ratio | 8.8:1 | 11.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1530 kg |
| Vehicle Length | 4600 mm | 4590 mm |
| Vehicle Width | 1880 mm | 1790 mm |
| Vehicle Height | 1660 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption City | 13.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 68 L | 63 L |
