2009 Audi A8 vs. 2005 Mercedes-Benz Viano
To start off, 2009 Audi A8 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz Viano. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz Viano would be higher. At 5,204 cc (10 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP) has 336 more horse power than 2005 Mercedes-Benz Viano. (108 HP). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2005 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz Viano weights approximately 85 kg more than 2009 Audi A8.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz Viano. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi A8 (540 Nm @ 3500 RPM) has 270 more torque (in Nm) than 2005 Mercedes-Benz Viano. (270 Nm @ 1600 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz Viano.
Compare all specifications:
| 2009 Audi A8 | 2005 Mercedes-Benz Viano | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | Viano |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2147 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 108 HP |
| Torque | 540 Nm | 270 Nm |
| Torque RPM | 3500 RPM | 1600 RPM |
| Engine Bore Size | 84.5 mm | 88 mm |
| Engine Stroke Size | 92.8 mm | 88.3 mm |
| Engine Compression Ratio | 12.5:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 157 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 16.2 seconds |
| Drive Type | 4WD | Rear |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 2025 kg |
| Vehicle Length | 5070 mm | 4750 mm |
| Vehicle Width | 1900 mm | 1910 mm |
| Vehicle Height | 1430 mm | 1880 mm |
| Wheelbase Size | 2950 mm | 3210 mm |
| Fuel Consumption Overall | 15.8 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 90 L | 75 L |
