2005 Audi A3 vs. 2007 Audi A4
To start off, 2007 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A3. In addition, the cost of maintenance, including insurance, on 2005 Audi A3 would be higher. At 1,984 cc (4 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (197 HP @ 5100 RPM) has 84 more horse power than 2005 Audi A3. (113 HP @ 5800 RPM) In normal driving conditions, 2007 Audi A4 should accelerate faster than 2005 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 365 kg more than 2005 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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 A4 (280 Nm @ 1800 RPM) has 125 more torque (in Nm) than 2005 Audi A3. (155 Nm @ 4000 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A3. 2007 Audi A4 has automatic transmission and 2005 Audi A3 has manual transmission. 2005 Audi A3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A3 | 2007 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2005 | 2007 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1984 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 113 HP | 197 HP |
| Engine RPM | 5800 RPM | 5100 RPM |
| Torque | 155 Nm | 280 Nm |
| Torque RPM | 4000 RPM | 1800 RPM |
| Engine Compression Ratio | 12.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 191 km/hour | 238 km/hour |
| Acceleration 0-100mph | 11.1 seconds | 8.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1265 kg | 1630 kg |
| Vehicle Length | 4290 mm | 4580 mm |
| Vehicle Width | 1770 mm | 1400 mm |
| Vehicle Height | 1430 mm | 1780 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption Overall | 6.6 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
