2005 Audi A8 vs. 1991 Mercedes-Benz 400
To start off, 2005 Audi A8 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz 400. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz 400 would be higher. At 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (444 HP @ 6500 RPM) has 158 more horse power than 1991 Mercedes-Benz 400. (286 HP @ 5700 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1991 Mercedes-Benz 400. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 400 weights approximately 1104 kg more than 2005 Audi A8.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Mercedes-Benz 400. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Audi A8 (560 Nm @ 4000 RPM) has 150 more torque (in Nm) than 1991 Mercedes-Benz 400. (410 Nm @ 3900 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz 400.
Compare all specifications:
| 2005 Audi A8 | 1991 Mercedes-Benz 400 | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | 400 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 4196 cc |
| Engine Type | W | V |
| Horse Power | 444 HP | 286 HP |
| Engine RPM | 6500 RPM | 5700 RPM |
| Torque | 560 Nm | 410 Nm |
| Torque RPM | 4000 RPM | 3900 RPM |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Top Speed | 245 km/hour | 245 km/hour |
| Acceleration 0-100mph | 5.2 seconds | 7.7 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 900 kg | 2004 kg |
| Vehicle Length | 5190 mm | 5220 mm |
| Vehicle Width | 1900 mm | 1890 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 3080 mm | 3150 mm |
