2003 BMW M3 vs. 2004 Mercedes-Benz Viano
To start off, 2004 Mercedes-Benz Viano is newer by 1 year(s). Which means there will be less support and parts availability for 2003 BMW M3. In addition, the cost of maintenance, including insurance, on 2003 BMW M3 would be higher. At 3,168 cc (6 cylinders), 2003 BMW M3 is equipped with a bigger engine. In terms of performance, 2003 BMW M3 (342 HP @ 7900 RPM) has 194 more horse power than 2004 Mercedes-Benz Viano. (148 HP @ 3800 RPM). In normal driving conditions, 2003 BMW M3 should accelerate faster than 2004 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mercedes-Benz Viano weights approximately 655 kg more than 2003 BMW M3.
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 BMW M3 (350 Nm @ 4900 RPM) has 20 more torque (in Nm) than 2004 Mercedes-Benz Viano. (330 Nm @ 1800 RPM). This means 2003 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2004 Mercedes-Benz Viano.
Compare all specifications:
| 2003 BMW M3 | 2004 Mercedes-Benz Viano | |
| Make | BMW | Mercedes-Benz |
| Model | M3 | Viano |
| Year Released | 2003 | 2004 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3168 cc | 2148 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 148 HP |
| Engine RPM | 7900 RPM | 3800 RPM |
| Torque | 350 Nm | 330 Nm |
| Torque RPM | 4900 RPM | 1800 RPM |
| Engine Compression Ratio | 11.5:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 259 km/hour | 169 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 13 seconds |
| Drive Type | Rear | Rear |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1385 kg | 2040 kg |
| Vehicle Length | 4500 mm | 5000 mm |
| Vehicle Width | 1790 mm | 1910 mm |
| Vehicle Height | 1370 mm | 1880 mm |
| Wheelbase Size | 2730 mm | 3090 mm |
| Fuel Consumption Overall | 11.4 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 63 L | 88 L |
