2009 Audi S4 vs. 2007 Audi A3
To start off, 2009 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A3. In addition, the cost of maintenance, including insurance, on 2007 Audi A3 would be higher. At 4,163 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 7000 RPM) has 143 more horse power than 2007 Audi A3. (197 HP @ 5100 RPM). In normal driving conditions, 2009 Audi S4 should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A3 weights approximately 515 kg more than 2009 Audi S4.
Because 2009 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Audi A3. In wet, icy, snow, or gravel driving conditions, 2009 Audi S4 will offer significantly more control. 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 Audi S4 (410 Nm @ 3500 RPM) has 130 more torque (in Nm) than 2007 Audi A3. (280 Nm @ 1800 RPM). This means 2009 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A3. 2007 Audi A3 has automatic transmission and 2009 Audi S4 has manual transmission. 2009 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi A3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi S4 | 2007 Audi A3 | |
| Make | Audi | Audi |
| Model | S4 | A3 |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Hatchback |
| 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 | 340 HP | 197 HP |
| Engine RPM | 7000 RPM | 5100 RPM |
| Torque | 410 Nm | 280 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 930 kg | 1445 kg |
| Vehicle Length | 4580 mm | 4220 mm |
| Vehicle Width | 1780 mm | 1770 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2580 mm |
| Fuel Consumption Overall | 15.7 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
