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 3,697 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (230 HP @ 4000 RPM) has 53 more horse power than 2009 Audi A6. (177 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. 2008 Audi A4 weights approximately 139 kg more than 2009 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A6. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Audi A4 (450 Nm @ 1400 RPM) has 70 more torque (in Nm) than 2009 Audi A6. (380 Nm @ 1400 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6. 2009 Audi A6 has automatic transmission and 2008 Audi A4 has manual transmission. 2008 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A6 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 | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 2967 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 177 HP | 230 HP |
| Engine RPM | 3300 RPM | 4000 RPM |
| Torque | 380 Nm | 450 Nm |
| Torque RPM | 1400 RPM | 1400 RPM |
| Engine Bore Size | 83 mm | 83 mm |
| Engine Stroke Size | 83.1 mm | 91.4 mm |
| Engine Compression Ratio | 17.0:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 225 km/hour | 242 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 7.3 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1655 kg | 1794 kg |
| Vehicle Length | 4920 mm | 4580 mm |
| Vehicle Width | 1470 mm | 1780 mm |
| Vehicle Height | 1860 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2660 mm |
| Fuel Consumption Overall | 7.2 L/100km | 8 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
