2006 BMW X5 vs. 1991 Mercedes-Benz 400
To start off, 2006 BMW X5 is newer by 15 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 (286 HP @ 5700 RPM) has 105 more horse power than 2006 BMW X5. (181 HP @ 2000 RPM) In normal driving conditions, 1991 Mercedes-Benz 400 should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 400 weights approximately 374 kg more than 2006 BMW X5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW X5 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, 2006 BMW X5 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, both vehicles can yield 410 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2006 BMW X5 | 1991 Mercedes-Benz 400 | |
| Make | BMW | Mercedes-Benz |
| Model | X5 | 400 |
| Year Released | 2006 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 4196 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 181 HP | 286 HP |
| Engine RPM | 2000 RPM | 5700 RPM |
| Torque | 410 Nm | 410 Nm |
| Torque RPM | 2000 RPM | 3900 RPM |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Top Speed | 195 km/hour | 245 km/hour |
| Acceleration 0-100mph | 10.1 seconds | 7.7 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1630 kg | 2004 kg |
| Vehicle Length | 4670 mm | 5220 mm |
| Vehicle Width | 1880 mm | 1890 mm |
| Vehicle Height | 1720 mm | 1500 mm |
| Wheelbase Size | 2830 mm | 3150 mm |
