2005 BMW X5 vs. 1991 Mercedes-Benz S
To start off, 2005 BMW X5 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz S would be higher. At 4,799 cc (8 cylinders), 2005 BMW X5 is equipped with a bigger engine. In terms of performance, 2005 BMW X5 (355 HP @ 6200 RPM) has 191 more horse power than 1991 Mercedes-Benz S. (164 HP @ 4600 RPM). In normal driving conditions, 2005 BMW X5 should accelerate faster than 1991 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 680 kg more than 1991 Mercedes-Benz S. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Mercedes-Benz S. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 BMW X5 (490 Nm @ 3600 RPM) has 262 more torque (in Nm) than 1991 Mercedes-Benz S. (228 Nm @ 4600 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz S. 2005 BMW X5 has automatic transmission and 1991 Mercedes-Benz S has manual transmission. 1991 Mercedes-Benz S will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW X5 | 1991 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | X5 | S |
| Year Released | 2005 | 1991 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 2598 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 355 HP | 164 HP |
| Engine RPM | 6200 RPM | 4600 RPM |
| Torque | 490 Nm | 228 Nm |
| Torque RPM | 3600 RPM | 4600 RPM |
| Engine Bore Size | 93 mm | 82.9 mm |
| Engine Stroke Size | 88.3 mm | 80.3 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2200 kg | 1520 kg |
| Vehicle Length | 4670 mm | 5030 mm |
| Vehicle Width | 1880 mm | 1830 mm |
| Vehicle Height | 1760 mm | 1440 mm |
| Wheelbase Size | 2940 mm | 2950 mm |
