2005 Audi A4 vs. 2007 Audi A3
To start off, 2007 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 2,976 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (217 HP @ 4000 RPM) has 79 more horse power than 2007 Audi A3. (138 HP @ 4000 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 153 kg more than 2007 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 Audi A3 (320 Nm) has 20 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 2007 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2007 Audi A3 | |
| Make | Audi | Audi |
| Model | A4 | A3 |
| Year Released | 2005 | 2007 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 1967 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 138 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 300 Nm | 320 Nm |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 93 mm | 95.5 mm |
| Engine Compression Ratio | 10.1:1 | 18.0:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1698 kg | 1545 kg |
| Vehicle Length | 4580 mm | 4210 mm |
| Vehicle Width | 1780 mm | 1770 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2580 mm |
| Fuel Consumption Overall | 10.2 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
