1978 BMW 725 vs. 2007 Mercedes-Benz Viano
To start off, 2007 Mercedes-Benz Viano is newer by 29 year(s). Which means there will be less support and parts availability for 1978 BMW 725. In addition, the cost of maintenance, including insurance, on 1978 BMW 725 would be higher. At 3,199 cc (6 cylinders), 2007 Mercedes-Benz Viano is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz Viano (187 HP @ 5600 RPM) has 39 more horse power than 1978 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2007 Mercedes-Benz Viano should accelerate faster than 1978 BMW 725.
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, 2007 Mercedes-Benz Viano (270 Nm @ 2750 RPM) has 55 more torque (in Nm) than 1978 BMW 725. (215 Nm @ 4000 RPM). This means 2007 Mercedes-Benz Viano will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
| 1978 BMW 725 | 2007 Mercedes-Benz Viano | |
| Make | BMW | Mercedes-Benz |
| Model | 725 | Viano |
| Year Released | 1978 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 3199 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 148 HP | 187 HP |
| Engine RPM | 5500 RPM | 5600 RPM |
| Torque | 215 Nm | 270 Nm |
| Torque RPM | 4000 RPM | 2750 RPM |
| Engine Bore Size | 86.1 mm | 89.9 mm |
| Engine Stroke Size | 71.6 mm | 84 mm |
| Engine Compression Ratio | 9.6:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4870 mm | 5000 mm |
| Vehicle Width | 1810 mm | 1910 mm |
| Vehicle Height | 1440 mm | 1880 mm |
| Wheelbase Size | 2810 mm | 3210 mm |
