2008 BMW 645 vs. 1999 BMW 730

To start off, 2008 BMW 645 is newer by 9 year(s). Which means there will be less support and parts availability for 1999 BMW 730. In addition, the cost of maintenance, including insurance, on 1999 BMW 730 would be higher. At 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2008 BMW 645 (328 HP @ 6100 RPM) has 138 more horse power than 1999 BMW 730. (190 HP @ 5300 RPM). In normal driving conditions, 2008 BMW 645 should accelerate faster than 1999 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 645 weights approximately 69 kg more than 1999 BMW 730. 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, 2008 BMW 645 (450 Nm @ 3600 RPM) has 170 more torque (in Nm) than 1999 BMW 730. (280 Nm @ 3950 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW 730.

Compare all specifications:

2008 BMW 645 1999 BMW 730
Make BMW BMW
Model 645 730
Year Released 2008 1999
Body Type Convertible Sedan
Engine Position Front Front
Engine Size 4398 cc 2793 cc
Engine Cylinders 8 cylinders 6 cylinders
Engine Type V in-line
Valves per Cylinder 4 valves 4 valves
Horse Power 328 HP 190 HP
Engine RPM 6100 RPM 5300 RPM
Torque 450 Nm 280 Nm
Torque RPM 3600 RPM 3950 RPM
Engine Bore Size 92 mm 84 mm
Engine Stroke Size 82.7 mm 84 mm
Engine Compression Ratio 10.0:1 10.2:1
Fuel Type Gasoline - Premium Gasoline
Drive Type Rear Rear
Transmission Type Automatic Automatic
Number of Seats 4 seats 5 seats
Number of Doors 2 doors 4 doors
Vehicle Weight 1815 kg 1746 kg
Vehicle Length 4830 mm 5130 mm
Vehicle Width 1860 mm 1870 mm
Vehicle Height 1380 mm 1430 mm
Wheelbase Size 2790 mm 2940 mm
Fuel Tank Capacity 70 L 90 L