2009 Audi A6 vs. 2008 Audi A4
To start off, 2009 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A4. In addition, the cost of maintenance, including insurance, on 2008 Audi A4 would be higher. At 3,123 cc (6 cylinders), 2008 Audi A4 is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (255 HP @ 6500 RPM) has 77 more horse power than 2009 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2008 Audi A4 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 388 kg more than 2008 Audi A4.
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, 2009 Audi A6 (380 Nm @ 1400 RPM) has 50 more torque (in Nm) than 2008 Audi A4. (330 Nm @ 3250 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4. 2008 Audi A4 has automatic transmission and 2009 Audi A6 has manual transmission. 2009 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A6 | 2008 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2009 | 2008 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 3123 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 178 HP | 255 HP |
| Engine RPM | 3300 RPM | 6500 RPM |
| Torque | 380 Nm | 330 Nm |
| Torque RPM | 1400 RPM | 3250 RPM |
| Engine Compression Ratio | 17.0:1 | 12.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1698 kg | 1310 kg |
| Vehicle Length | 4940 mm | 4580 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2660 mm |
| Fuel Consumption Overall | 8.3 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
