Convertible Faults
When the top is down, the 650i is truly magnificent. Very little wind intrudes on front passengers, and the car feels rigid — very rigid. Like a tank.
The cruising experience is terrific right until you have to put the top up. My wife and I took a short road trip to Milwaukee from Chicago, leaving the kids behind. Sounds like it should be an idyllic time, but the drive itself — over various concrete and asphalt highways — was loud. Noise from the shoddy surfaces was extreme, and the canvas top let in more noise from passing semi trucks than I thought it should. Jaguar's canvas-topped XK is an improvement over the 650i in this regard, as well.
Lowering or raising the powered top is as easy as pressing a button, and it can be initiated while moving at low speeds. I also appreciated the accompanying clear, audible alert, along with a visual cue on the gauge cluster, to indicate when the process was complete.
The convertible top's long "tails" make for interesting styling when in place, but they also create a huge blind spot. There is little visibility for backing out of parking spaces, which is why it's a good thing the 650i comes equipped with a variety of parking sensors. On the open road, I found the mirrors adequate enough for merging. The large glass rear window also helped with visibility while driving.
See also:
TeleService Report
Transmits technical data that is evaluated for the
ongoing development of BMW products from
your vehicle to BMW in regular intervals if necessary.
TeleService Report is activated in vehicles that ...
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
Those grades represent the tire’s ability to stop
on wet pavement as measured under controlled
conditions on specified governme ...
Check the tire inflationpressure regularly
Check and, if necessary, correct the tire inflation
pressure at least twice a month and before starting
on a long trip.
Low tire inflation pressure increases rolling resistance
and thus raises f ...
