Road Test

Road Test: 2011 BMW 650i Convertible

September 19, 2011

BMW 650i 2011_01It’s hard to be unnoticed when driving with the BMW’s new 6 Series Convertible. If the previous 6 Series looked good, this new one is astonishing. With the total length of 4894 millimetres, the new Convertible is 74 millimetres longer than its predecessor. The car is also 39 millimetres wider and now measures 1894 millimetres across. At the same time 9 millimetres have been shaved off its height. As the car’s height is only 1365 millimetres, it looks even longer and wider than it actually is.

As the car has grown in width and length, the interior is quite spacious, especially in the front. The 6 Series is designed to be a 2+2 seater, so the legroom is surprisingly small in the rear seat considering the car’s wheelbase of 2855 millimetres. Eventhough the car has lost some height, it still provides quite nicely headroom in both front and rear seats, also with the roof on top. The Dakota leather trim is standard, but Nappa leather is available as an option in four colour options. In addition to the seats, the instrument panel, the centre console and the upper sections of the rear door panel and side trim can also be lined with Nappa leather as an option and if you want the interior to look even more special, these interior elements can also be ordered with the stitching in a contrasting colour.

The Convertible comes with an electrically powered soft-top roof. The soft-top can can be opened or closed easily with using the button on the centre console. With the Comfort Access option you can also operate the roof  using the remote control button on the car key. Opening the roof takes 19 seconds and the closing 24 seconds. The roof can be opened or closed while driving at speeds of up to 40 km/h. The multi-layer roof offers sound and thermal insulation, so this convertible is useful all year round. The soft-top is available in three colour variants and for the car’s exterior there are two non-metallic finishes and seven metallic shades available.

Five seconds flat. That’s all it takes for the BMW 650i Convertible to accelerate from standstill to hundred kilometres per hour. Even without the stopwatch, you can say that this sounds about right. It’s actually a bit sad, that the acceleration is over so quickly, as it would be nice to enjoy that feeling of acceleration a bit longer. On the road, those moments when you can push the throttle to the floor are quite short, if you like to stay within speed limits. Naturally the 650i would be more than happy to keep accelerating all the way to the limited top speed of 250 km/h.

These magnificent performance figures are the result of a combination of V8 engine, BMW TwinPower Turbo technology and direct injection. The 4.4-litre eight-cylinder engine has two turbochargers which are positioned in the V-shaped area between the cylinder banks. The engine produces 407 hp between 5500 and 6400 rpm and massive 600 Newton metres of torque between 1750 and 4500rpm. Turbocharged V8 develops a lot of power and especially a huge amount of torque, but this powerful convertible can be quite economical as well. The average fuel consumption is only 10,7 litres per 100 kilometres and the CO2 emissions are 249 grams per kilometre. These are pretty great numbers for a car this powerful. Although, reaching the 10,7 litre average consumption takes some serious self-control.



  • Petrol
  • 8-cylinder
  • 4395cc
  • Twinturbo


  • 300 kW (407 hp) / 5500-6400rpm


  • 600 Nm (443 lb-ft / 1750-4500rpm


  • 8-speed automatic
  • RWD

0-100km/h / 0-62mph

  • 5.0 seconds

Top speed

  • 250 km/h
  • 155 mph

Fuel consumption

  • 10.6 l/100km
  • 26.4 mpg

CO2 emissions

  • 248 g/km

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