2007 Audi Q7 vs. 1991 Mercedes-Benz 400
To start off, 2007 Audi Q7 is newer by 16 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 4,196 cc (8 cylinders), 1991 Mercedes-Benz 400 is equipped with a bigger engine. In terms of performance, 1991 Mercedes-Benz 400 (287 HP @ 5700 RPM) has 58 more horse power than 2007 Audi Q7. (229 HP @ 4000 RPM) In normal driving conditions, 1991 Mercedes-Benz 400 should accelerate faster than 2007 Audi Q7. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi Q7 weights approximately 295 kg more than 1991 Mercedes-Benz 400.
Because 2007 Audi Q7 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, 2007 Audi Q7 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, 2007 Audi Q7 (501 Nm @ 1750 RPM) has 91 more torque (in Nm) than 1991 Mercedes-Benz 400. (410 Nm @ 3900 RPM). This means 2007 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz 400.
Compare all specifications:
| 2007 Audi Q7 | 1991 Mercedes-Benz 400 | |
| Make | Audi | Mercedes-Benz |
| Model | Q7 | 400 |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 4196 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 229 HP | 287 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 501 Nm | 410 Nm |
| Torque RPM | 1750 RPM | 3900 RPM |
| Engine Bore Size | 83 mm | 92 mm |
| Engine Stroke Size | 91.4 mm | 78.9 mm |
| Top Speed | 210 km/hour | 232 km/hour |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2295 kg | 2000 kg |
| Vehicle Length | 5090 mm | 5110 mm |
| Vehicle Width | 1990 mm | 1890 mm |
| Vehicle Height | 1740 mm | 1500 mm |
| Wheelbase Size | 3010 mm | 3050 mm |
