2003 Audi A3 vs. 2007 Audi A4
To start off, 2007 Audi A4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Audi A3. In addition, the cost of maintenance, including insurance, on 2003 Audi A3 would be higher. At 2,967 cc (6 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (230 HP @ 4000 RPM) has 126 more horse power than 2003 Audi A3. (104 HP @ 4000 RPM) In normal driving conditions, 2007 Audi A4 should accelerate faster than 2003 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 495 kg more than 2003 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Audi A3. In wet, icy, snow, or gravel driving conditions, 2007 Audi A4 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, 2007 Audi A4 (451 Nm @ 1400 RPM) has 201 more torque (in Nm) than 2003 Audi A3. (250 Nm @ 1900 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A3. 2007 Audi A4 has automatic transmission and 2003 Audi A3 has manual transmission. 2003 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:
| 2003 Audi A3 | 2007 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2003 | 2007 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2967 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 104 HP | 230 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 250 Nm | 451 Nm |
| Torque RPM | 1900 RPM | 1400 RPM |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 11.4 seconds | 7.3 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1295 kg | 1790 kg |
| Vehicle Length | 4210 mm | 4580 mm |
| Vehicle Width | 1770 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2580 mm | 2660 mm |
| Fuel Consumption Overall | 5.1 L/100km | 8 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
