2005 BMW 730 vs. 1991 Mercedes-Benz 500
To start off, 2005 BMW 730 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz 500. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz 500 would be higher. At 4,971 cc (8 cylinders), 1991 Mercedes-Benz 500 is equipped with a bigger engine. In terms of performance, 1991 Mercedes-Benz 500 (326 HP @ 5700 RPM) has 101 more horse power than 2005 BMW 730. (225 HP @ 4000 RPM) In normal driving conditions, 1991 Mercedes-Benz 500 should accelerate faster than 2005 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 500 weights approximately 37 kg more than 2005 BMW 730. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 730 (500 Nm @ 2000 RPM) has 20 more torque (in Nm) than 1991 Mercedes-Benz 500. (480 Nm @ 3900 RPM). This means 2005 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz 500.
Compare all specifications:
| 2005 BMW 730 | 1991 Mercedes-Benz 500 | |
| Make | BMW | Mercedes-Benz |
| Model | 730 | 500 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 4971 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 225 HP | 326 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 500 Nm | 480 Nm |
| Torque RPM | 2000 RPM | 3900 RPM |
| Engine Bore Size | 84.1 mm | 96.5 mm |
| Engine Stroke Size | 90 mm | 85 mm |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Acceleration 0-100mph | 8 seconds | 6.7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1975 kg | 2012 kg |
| Vehicle Length | 5050 mm | 5220 mm |
| Vehicle Width | 1910 mm | 1890 mm |
| Vehicle Height | 1500 mm | 1500 mm |
| Wheelbase Size | 2890 mm | 3150 mm |
| Fuel Tank Capacity | 88 L | 70 L |
