2003 Mercedes-Benz Viano vs. 2009 BMW Z4
To start off, 2009 BMW Z4 is newer by 6 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 2,497 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (215 HP @ 6500 RPM) has 74 more horse power than 2003 Mercedes-Benz Viano. (141 HP @ 3800 RPM) In normal driving conditions, 2009 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 684 kg more than 2009 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 Viano (344 Nm @ 1800 RPM) has 94 more torque (in Nm) than 2009 BMW Z4. (250 Nm @ 2750 RPM). This means 2003 Mercedes-Benz Viano will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2003 Mercedes-Benz Viano | 2009 BMW Z4 | |
| Make | Mercedes-Benz | BMW |
| Model | Viano | Z4 |
| Year Released | 2003 | 2009 |
| Body Type | Minivan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2148 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 215 HP |
| Engine RPM | 3800 RPM | 6500 RPM |
| Torque | 344 Nm | 250 Nm |
| Torque RPM | 1800 RPM | 2750 RPM |
| Engine Bore Size | 88 mm | 82 mm |
| Engine Stroke Size | 88.3 mm | 78.8 mm |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 174 km/hour | 240 km/hour |
| Drive Type | Rear | Rear |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2046 kg | 1362 kg |
| Vehicle Length | 4750 mm | 4100 mm |
| Vehicle Width | 1910 mm | 1310 mm |
| Vehicle Height | 1880 mm | 1790 mm |
| Wheelbase Size | 3210 mm | 2500 mm |
| Fuel Consumption Overall | 8.6 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 80 L | 55 L |
