2013 BMW 6 series Coupe 640i vs. 2013 BMW 6 series Convertible 650i

To start off, both 2013 BMW 6 series Coupe 640i and 2013 BMW 6 series Convertible 650i were released in the same year (2013). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,395 cc (8 cylinders), 2013 BMW 6 series Convertible 650i is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series Convertible 650i (439 HP @ 6000 RPM) has 128 more horse power than 2013 BMW 6 series Coupe 640i. (311 HP @ 6000 RPM) In normal driving conditions, 2013 BMW 6 series Convertible 650i should accelerate faster than 2013 BMW 6 series Coupe 640i. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series Convertible 650i weights approximately 235 kg more than 2013 BMW 6 series Coupe 640i. 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, 2013 BMW 6 series Convertible 650i (651 Nm @ 4500 RPM) has 204 more torque (in Nm) than 2013 BMW 6 series Coupe 640i. (447 Nm @ 4500 RPM). This means 2013 BMW 6 series Convertible 650i will have an easier job in driving up hills or pulling heavy equipment than 2013 BMW 6 series Coupe 640i. 2013 BMW 6 series Coupe 640i has automatic transmission and 2013 BMW 6 series Convertible 650i has manual transmission. 2013 BMW 6 series Convertible 650i will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW 6 series Coupe 640i will be easier to drive especially in heavy traffic.

Compare all specifications:

2013 BMW 6 series Coupe 640i 2013 BMW 6 series Convertible 650i
Make BMW BMW
Model 6 series 6 series
Year Released 2013 2013
Body Type Coupe Convertible
Engine Position Front Front
Engine Size 2979 cc 4395 cc
Engine Cylinders 6 cylinders 8 cylinders
Engine Type in-line V
Valves per Cylinder 4 valves 4 valves
Horse Power 311 HP 439 HP
Engine RPM 6000 RPM 6000 RPM
Torque 447 Nm 651 Nm
Torque RPM 4500 RPM 4500 RPM
Engine Bore Size 84 mm 84 mm
Engine Stroke Size 89 mm 89 mm
Engine Compression Ratio 10.2 :1 10.0 :1
Fuel Type Gasoline Gasoline
Top Speed 250 km/hour 250 km/hour
Acceleration 0-100mph 5.3 seconds 4.5 seconds
Drive Type Rear Rear
Transmission Type 8-speed automatic 6-speed manual
Number of Seats 4 seats 4 seats
Number of Doors 2 doors 2 doors
Vehicle Weight 1815 kg 2050 kg
Vehicle Length 4897 mm 4897 mm
Vehicle Width 1895 mm 1895 mm
Vehicle Height 1369 mm 1364 mm
Wheelbase Size 2856 mm 2855 mm
Fuel Tank Capacity 70 L 70 L


 

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