2005 BMW 730 vs. 2006 Mercedes-Benz S
To start off, 2006 Mercedes-Benz S is newer by 1 year(s). Which means there will be less support and parts availability for 2005 BMW 730. In addition, the cost of maintenance, including insurance, on 2005 BMW 730 would be higher. At 4,965 cc (8 cylinders), 2006 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz S (302 HP @ 5600 RPM) has 77 more horse power than 2005 BMW 730. (225 HP @ 4000 RPM) In normal driving conditions, 2006 Mercedes-Benz S should accelerate faster than 2005 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 730 weights approximately 84 kg more than 2006 Mercedes-Benz S.
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 40 more torque (in Nm) than 2006 Mercedes-Benz S. (460 Nm @ 2700 RPM). This means 2005 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercedes-Benz S.
Compare all specifications:
| 2005 BMW 730 | 2006 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 730 | S |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 4965 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 225 HP | 302 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 500 Nm | 460 Nm |
| Torque RPM | 2000 RPM | 2700 RPM |
| Engine Bore Size | 84.1 mm | 97 mm |
| Engine Stroke Size | 90 mm | 84 mm |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1975 kg | 1891 kg |
| Vehicle Length | 5050 mm | 5170 mm |
| Vehicle Width | 1910 mm | 1860 mm |
| Vehicle Height | 1500 mm | 1450 mm |
| Wheelbase Size | 2890 mm | 3090 mm |
| Fuel Consumption | 6.4 L/100km | 9.8 L/100km |
| Fuel Consumption City | 11.3 L/100km | 14.7 L/100km |
| Fuel Consumption Overall | 8.2 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 88 L | 88 L |
