2007 Audi S4 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 2 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 (339 HP @ 7000 RPM) has 128 more horse power than 2009 Audi A4. (211 HP @ 4300 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 825 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, 2007 Audi S4 (410 Nm @ 3500 RPM) has 60 more torque (in Nm) than 2009 Audi A4. (350 Nm @ 1500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2007 Audi S4 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | S4 | A4 |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1984 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 211 HP |
| Engine RPM | 7000 RPM | 4300 RPM |
| Torque | 410 Nm | 350 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Engine Bore Size | 84.6 mm | 82.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| 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 | 1755 kg | 930 kg |
| Vehicle Length | 4590 mm | 4710 mm |
| Vehicle Width | 1730 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2650 mm | 2820 mm |
| Fuel Consumption Overall | 12.3 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
