2009 BMW 635 vs. 1998 BMW 740
To start off, 2009 BMW 635 is newer by 11 year(s). Which means there will be less support and parts availability for 1998 BMW 740. In addition, the cost of maintenance, including insurance, on 1998 BMW 740 would be higher. At 4,398 cc (8 cylinders), 1998 BMW 740 is equipped with a bigger engine. In terms of performance, 1998 BMW 740 (286 HP @ 5400 RPM) has 4 more horse power than 2009 BMW 635. (282 HP @ 4400 RPM) In normal driving conditions, 1998 BMW 740 should accelerate faster than 2009 BMW 635.
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, 2009 BMW 635 (580 Nm @ 1750 RPM) has 140 more torque (in Nm) than 1998 BMW 740. (440 Nm @ 3600 RPM). This means 2009 BMW 635 will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 740.
Compare all specifications:
| 2009 BMW 635 | 1998 BMW 740 | |
| Make | BMW | BMW |
| Model | 635 | 740 |
| Year Released | 2009 | 1998 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 282 HP | 286 HP |
| Engine RPM | 4400 RPM | 5400 RPM |
| Torque | 580 Nm | 440 Nm |
| Torque RPM | 1750 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 90 mm | 82.7 mm |
| Top Speed | 250 km/hour | 249 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4830 mm | 5130 mm |
| Vehicle Width | 1860 mm | 1870 mm |
| Vehicle Height | 1380 mm | 1430 mm |
| Wheelbase Size | 2790 mm | 3080 mm |
| Fuel Tank Capacity | 70 L | 95 L |
