1999 BMW 740 vs. 2004 BMW 645
To start off, 2004 BMW 645 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 BMW 740. In addition, the cost of maintenance, including insurance, on 1999 BMW 740 would be higher. Both 1999 BMW 740 and 2004 BMW 645 are equipped with a 4,398 cc engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 45 more horse power than 1999 BMW 740. (283 HP @ 7750 RPM) In normal driving conditions, 2004 BMW 645 should accelerate faster than 1999 BMW 740. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW 740 weights approximately 130 kg more than 2004 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, 2004 BMW 645 (451 Nm) has 32 more torque (in Nm) than 1999 BMW 740. (419 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW 740. 2004 BMW 645 has automatic transmission and 1999 BMW 740 has manual transmission. 1999 BMW 740 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 BMW 740 | 2004 BMW 645 | |
| Make | BMW | BMW |
| Model | 740 | 645 |
| Year Released | 1999 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 283 HP | 328 HP |
| Engine RPM | 7750 RPM | 6100 RPM |
| Torque | 419 Nm | 451 Nm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1815 kg |
| Vehicle Length | 4990 mm | 4830 mm |
| Vehicle Width | 1870 mm | 1860 mm |
| Vehicle Height | 1440 mm | 1380 mm |
| Wheelbase Size | 2940 mm | 2790 mm |
