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 4,261 cc (8 cylinders), 2005 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz S (275 HP @ 4200 RPM) has 86 more horse power than 2006 BMW Z4. (189 HP @ 6000 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 552 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 (415 Nm) has 170 more torque (in Nm) than 2006 BMW Z4. (245 Nm). This means 2005 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2005 Mercedes-Benz S has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Mercedes-Benz S will be easier to drive especially in heavy traffic.
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 | 2492 cc | 4261 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 189 HP | 275 HP |
| Engine RPM | 6000 RPM | 4200 RPM |
| Torque | 245 Nm | 415 Nm |
| Engine Bore Size | 84 mm | 90 mm |
| Engine Stroke Size | 75 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1887 kg |
| Vehicle Length | 4100 mm | 5170 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1310 mm | 1460 mm |
| Wheelbase Size | 2500 mm | 3090 mm |
| Fuel Consumption Overall | 9 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 55 L | 88 L |
