2006 BMW Z4 vs. 2005 Mercedes-Benz S
To start off, 2006 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz S would be higher. At 3,997 cc (8 cylinders), 2005 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz S (248 HP @ 4000 RPM) has 20 more horse power than 2006 BMW Z4. (228 HP @ 5900 RPM) In normal driving conditions, 2005 Mercedes-Benz S should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz S weights approximately 675 kg more than 2006 BMW Z4. 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 Mercedes-Benz S (560 Nm @ 1700 RPM) has 259 more torque (in Nm) than 2006 BMW Z4. (301 Nm @ 3500 RPM). This means 2005 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 2005 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | S |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 3997 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 228 HP | 248 HP |
| Engine RPM | 5900 RPM | 4000 RPM |
| Torque | 301 Nm | 560 Nm |
| Torque RPM | 3500 RPM | 1700 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 89.6 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 7.8 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1365 kg | 2040 kg |
| Vehicle Length | 4100 mm | 5160 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1310 mm | 1450 mm |
| Wheelbase Size | 2500 mm | 2970 mm |
| Fuel Consumption Overall | 9.1 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 55 L | 88 L |
