2006 Audi A8 vs. 2007 Mercedes-Benz A
To start off, 2007 Mercedes-Benz A is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Audi A8. In addition, the cost of maintenance, including insurance, on 2006 Audi A8 would be higher. At 5,997 cc, 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (450 HP @ 6200 RPM) has 312 more horse power than 2007 Mercedes-Benz A. (138 HP @ 4200 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2007 Mercedes-Benz A. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 805 kg more than 2007 Mercedes-Benz A. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz A. In wet, icy, snow, or gravel driving conditions, 2006 Audi A8 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, 2006 Audi A8 (580 Nm @ 4000 RPM) has 280 more torque (in Nm) than 2007 Mercedes-Benz A. (300 Nm @ 1600 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz A.
Compare all specifications:
| 2006 Audi A8 | 2007 Mercedes-Benz A | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | A |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5997 cc | 1989 cc |
| Engine Type | W | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 138 HP |
| Engine RPM | 6200 RPM | 4200 RPM |
| Torque | 580 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 1600 RPM |
| Engine Bore Size | 84 mm | 83 mm |
| Engine Stroke Size | 90.2 mm | 92 mm |
| Engine Compression Ratio | 11.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 2145 kg | 1340 kg |
| Vehicle Length | 5200 mm | 3840 mm |
| Vehicle Width | 1900 mm | 1770 mm |
| Vehicle Height | 1460 mm | 1600 mm |
| Wheelbase Size | 3080 mm | 2570 mm |
| Fuel Consumption Overall | 13.8 L/100km | 5.4 L/100km |
| Fuel Tank Capacity | 90 L | 54 L |
