2007 BMW 645 vs. 1971 Cadillac Fleetwood
To start off, 2007 BMW 645 is newer by 36 year(s). Which means there will be less support and parts availability for 1971 Cadillac Fleetwood. In addition, the cost of maintenance, including insurance, on 1971 Cadillac Fleetwood would be higher. At 7,725 cc (8 cylinders), 1971 Cadillac Fleetwood is equipped with a bigger engine. In terms of performance, 1971 Cadillac Fleetwood (345 HP @ 4400 RPM) has 17 more horse power than 2007 BMW 645. (328 HP @ 6100 RPM) In normal driving conditions, 1971 Cadillac Fleetwood should accelerate faster than 2007 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Fleetwood weights approximately 408 kg more than 2007 BMW 645. 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, 1971 Cadillac Fleetwood (679 Nm @ 2800 RPM) has 229 more torque (in Nm) than 2007 BMW 645. (450 Nm @ 3600 RPM). This means 1971 Cadillac Fleetwood will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 645. 1971 Cadillac Fleetwood has automatic transmission and 2007 BMW 645 has manual transmission. 2007 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Cadillac Fleetwood will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 645 | 1971 Cadillac Fleetwood | |
| Make | BMW | Cadillac |
| Model | 645 | Fleetwood |
| Year Released | 2007 | 1971 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 7725 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 328 HP | 345 HP |
| Engine RPM | 6100 RPM | 4400 RPM |
| Torque | 450 Nm | 679 Nm |
| Torque RPM | 3600 RPM | 2800 RPM |
| Engine Bore Size | 92 mm | 109.2 mm |
| Engine Stroke Size | 82.7 mm | 103.1 mm |
| Top Speed | 250 km/hour | 193 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1815 kg | 2223 kg |
| Vehicle Length | 4830 mm | 5810 mm |
| Vehicle Width | 1860 mm | 2040 mm |
| Vehicle Height | 1380 mm | 1420 mm |
| Wheelbase Size | 2790 mm | 3380 mm |
