2004 Audi A4 vs. 2012 Audi A8
To start off, 2012 Audi A8 is newer by 8 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 4,200 cc (8 cylinders), 2012 Audi A8 is equipped with a bigger engine. In terms of performance, 2012 Audi A8 (372 HP @ 6800 RPM) has 152 more horse power than 2004 Audi A4. (220 HP @ 6200 RPM) In normal driving conditions, 2012 Audi A8 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2012 Audi A8 weights approximately 230 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.
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, 2012 Audi A8 (444 Nm) has 134 more torque (in Nm) than 2004 Audi A4. (310 Nm). This means 2012 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2012 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2004 | 2012 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 4200 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 372 HP |
| Engine RPM | 6200 RPM | 6800 RPM |
| Torque | 310 Nm | 444 Nm |
| Drive Type | 4WD | AWD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1770 kg | 2000 kg |
| Vehicle Length | 4580 mm | 5136 mm |
| Vehicle Width | 1780 mm | 1948 mm |
| Vehicle Height | 1400 mm | 1461 mm |
| Wheelbase Size | 2660 mm | 2992 mm |
| Fuel Consumption Highway | 9.4 L/100km | 8.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
