2006 BMW Z4 vs. 2003 Mercedes-Benz Viano
To start off, 2006 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz Viano. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz Viano would be higher. At 3,199 cc (6 cylinders), 2003 Mercedes-Benz Viano is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 2 more horse power than 2003 Mercedes-Benz Viano. (187 HP @ 5600 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2003 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz Viano weights approximately 750 kg more than 2006 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 65 more torque (in Nm) than 2003 Mercedes-Benz Viano. (180 Nm @ 2750 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mercedes-Benz Viano. 2003 Mercedes-Benz Viano 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. 2003 Mercedes-Benz Viano will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2003 Mercedes-Benz Viano | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | Viano |
| Year Released | 2006 | 2003 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3199 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 189 HP | 187 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 245 Nm | 180 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 235 km/hour | 176 km/hour |
| Acceleration 0-100mph | 7 seconds | 9.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1335 kg | 2085 kg |
| Vehicle Length | 4100 mm | 5000 mm |
| Vehicle Width | 1790 mm | 1910 mm |
| Vehicle Height | 1310 mm | 1880 mm |
| Wheelbase Size | 2500 mm | 2720 mm |
| Fuel Consumption Overall | 9 L/100km | 12.5 L/100km |
| Fuel Tank Capacity | 55 L | 75 L |
