2006 BMW 645 vs. 1970 Mercury Cougar
To start off, 2006 BMW 645 is newer by 36 year(s). Which means there will be less support and parts availability for 1970 Mercury Cougar. In addition, the cost of maintenance, including insurance, on 1970 Mercury Cougar would be higher. At 5,769 cc (8 cylinders), 1970 Mercury Cougar is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 161 more horse power than 1970 Mercury Cougar. (167 HP @ 4000 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1970 Mercury Cougar. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 186 kg more than 1970 Mercury Cougar. 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 87 more torque (in Nm) than 1970 Mercury Cougar. (363 Nm @ 2400 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1970 Mercury Cougar.
Compare all specifications:
| 2006 BMW 645 | 1970 Mercury Cougar | |
| Make | BMW | Mercury |
| Model | 645 | Cougar |
| Year Released | 2006 | 1970 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5769 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 328 HP | 167 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 450 Nm | 363 Nm |
| Torque RPM | 3600 RPM | 2400 RPM |
| Engine Bore Size | 92 mm | 101.7 mm |
| Engine Stroke Size | 83 mm | 88.8 mm |
| Engine Compression Ratio | 10.0:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1836 kg | 1650 kg |
| Vehicle Length | 4830 mm | 5840 mm |
| Vehicle Width | 1860 mm | 2000 mm |
| Vehicle Height | 1380 mm | 1340 mm |
| Wheelbase Size | 2790 mm | 2860 mm |
