2004 BMW 645 vs. 1971 Mazda Cosmo
To start off, 2004 BMW 645 is newer by 33 year(s). Which means there will be less support and parts availability for 1971 Mazda Cosmo. In addition, the cost of maintenance, including insurance, on 1971 Mazda Cosmo would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 235 more horse power than 1971 Mazda Cosmo. (93 HP @ 7000 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 1971 Mazda Cosmo. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 750 kg more than 1971 Mazda Cosmo. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 BMW 645 (450 Nm @ 3600 RPM) has 317 more torque (in Nm) than 1971 Mazda Cosmo. (133 Nm @ 3500 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1971 Mazda Cosmo.
Compare all specifications:
| 2004 BMW 645 | 1971 Mazda Cosmo | |
| Make | BMW | Mazda |
| Model | 645 | Cosmo |
| Year Released | 2004 | 1971 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 1964 cc |
| Horse Power | 328 HP | 93 HP |
| Engine RPM | 6100 RPM | 7000 RPM |
| Torque | 450 Nm | 133 Nm |
| Torque RPM | 3600 RPM | 3500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1690 kg | 940 kg |
| Vehicle Length | 4830 mm | 4150 mm |
| Vehicle Width | 1860 mm | 1600 mm |
| Vehicle Height | 1380 mm | 1170 mm |
| Wheelbase Size | 2830 mm | 2210 mm |
