1990 Bentley Turbo vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 16 year(s). Which means there will be less support and parts availability for 1990 Bentley Turbo. In addition, the cost of maintenance, including insurance, on 1990 Bentley Turbo would be higher. At 6,750 cc (8 cylinders), 1990 Bentley Turbo is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 12 more horse power than 1990 Bentley Turbo. (316 HP @ 4200 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 1990 Bentley Turbo. With that said, vehicle weight also plays an important factor in acceleration. 1990 Bentley Turbo weights approximately 600 kg more than 2006 BMW 645.
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, 1990 Bentley Turbo (750 Nm @ 2000 RPM) has 300 more torque (in Nm) than 2006 BMW 645. (450 Nm @ 3600 RPM). This means 1990 Bentley Turbo will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 645.
Compare all specifications:
| 1990 Bentley Turbo | 2006 BMW 645 | |
| Make | Bentley | BMW |
| Model | Turbo | 645 |
| Year Released | 1990 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 6750 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 316 HP | 328 HP |
| Engine RPM | 4200 RPM | 6100 RPM |
| Torque | 750 Nm | 450 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Compression Ratio | 8.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Vehicle Weight | 2410 kg | 1810 kg |
| Vehicle Length | 5270 mm | 4830 mm |
| Vehicle Width | 2010 mm | 1860 mm |
| Vehicle Height | 1490 mm | 1380 mm |
| Wheelbase Size | 3070 mm | 2790 mm |
