2006 BMW 645 vs. 1977 Monteverdi Sierra
To start off, 2006 BMW 645 is newer by 29 year(s). Which means there will be less support and parts availability for 1977 Monteverdi Sierra. In addition, the cost of maintenance, including insurance, on 1977 Monteverdi Sierra would be higher. At 5,898 cc (8 cylinders), 1977 Monteverdi Sierra is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 151 more horse power than 1977 Monteverdi Sierra. (177 HP @ 4000 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1977 Monteverdi Sierra.
Compare all specifications:
| 2006 BMW 645 | 1977 Monteverdi Sierra | |
| Make | BMW | Monteverdi |
| Model | 645 | Sierra |
| Year Released | 2006 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5898 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 328 HP | 177 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4830 mm | 4890 mm |
| Wheelbase Size | 2790 mm | 2860 mm |
