2007 BMW Z4 vs. 2003 Mercedes-Benz S
To start off, 2007 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz S would be higher. At 3,996 cc (8 cylinders), 2003 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (338 HP @ 7900 RPM) has 96 more horse power than 2003 Mercedes-Benz S. (242 HP @ 4000 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz S weights approximately 505 kg more than 2007 BMW Z4.
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, 2003 Mercedes-Benz S (560 Nm @ 1700 RPM) has 195 more torque (in Nm) than 2007 BMW Z4. (365 Nm @ 4900 RPM). This means 2003 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2003 Mercedes-Benz S has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 2003 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | S |
| Year Released | 2007 | 2003 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 3996 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 242 HP |
| Engine RPM | 7900 RPM | 4000 RPM |
| Torque | 365 Nm | 560 Nm |
| Torque RPM | 4900 RPM | 1700 RPM |
| Engine Compression Ratio | 11.5:1 | 19.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 245 km/hour |
| Acceleration 0-100mph | 5 seconds | 7.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1485 kg | 1990 kg |
| Vehicle Length | 4120 mm | 5050 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1310 mm | 1450 mm |
| Wheelbase Size | 2500 mm | 3110 mm |
| Fuel Consumption Overall | 12.1 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
