2006 BMW 645 vs. 1985 Mercedes-Benz 420
To start off, 2006 BMW 645 is newer by 21 year(s). Which means there will be less support and parts availability for 1985 Mercedes-Benz 420. In addition, the cost of maintenance, including insurance, on 1985 Mercedes-Benz 420 would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 110 more horse power than 1985 Mercedes-Benz 420. (218 HP @ 5200 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1985 Mercedes-Benz 420. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 210 kg more than 1985 Mercedes-Benz 420. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 645 (450 Nm @ 3600 RPM) has 121 more torque (in Nm) than 1985 Mercedes-Benz 420. (329 Nm @ 3750 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1985 Mercedes-Benz 420.
Compare all specifications:
| 2006 BMW 645 | 1985 Mercedes-Benz 420 | |
| Make | BMW | Mercedes-Benz |
| Model | 645 | 420 |
| Year Released | 2006 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4196 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 328 HP | 218 HP |
| Engine RPM | 6100 RPM | 5200 RPM |
| Torque | 450 Nm | 329 Nm |
| Torque RPM | 3600 RPM | 3750 RPM |
| Top Speed | 250 km/hour | 212 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 9 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1810 kg | 1600 kg |
| Vehicle Length | 4830 mm | 5070 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1380 mm | 1420 mm |
| Wheelbase Size | 2790 mm | 2850 mm |
