2007 Audi A6 vs. 2004 Audi A4
To start off, 2007 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 3,123 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (255 HP @ 6500 RPM) has 54 more horse power than 2004 Audi A4. (201 HP @ 3500 RPM). In normal driving conditions, 2007 Audi A6 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 150 kg more than 2004 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, 2004 Audi A4 (451 Nm @ 1400 RPM) has 121 more torque (in Nm) than 2007 Audi A6. (330 Nm @ 3250 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A6.
Compare all specifications:
| 2007 Audi A6 | 2004 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 2967 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 201 HP |
| Engine RPM | 6500 RPM | 3500 RPM |
| Torque | 330 Nm | 451 Nm |
| Torque RPM | 3250 RPM | 1400 RPM |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1730 kg |
| Vehicle Length | 4920 mm | 4590 mm |
| Vehicle Width | 2020 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2850 mm | 2470 mm |
| Fuel Consumption Highway | 8.7 L/100km | 6.2 L/100km |
| Fuel Consumption City | 12.4 L/100km | 11.6 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
