(continued from above)
The sporting focus of the BMW M550d xDrive and BMW M550d xDrive Touring is
highlighted by bespoke modifications to power transfer, chassis and design
components. These upgrades bear the signature of BMW M GmbH, which uses its
development expertise to mould the two models into extraordinarily harmonious
overall packages. The outstanding power of the tri-turbo straight-six diesel
engine is translated into thrilling driving dynamics with impressive precision.
This allows the 5 Series-based BMW M Performance Automobiles to offer the driver
not only supreme diesel power, but also remarkably agile handling and
predictable, controllable responses when exploring their dynamic limits.
Exterior Design
Another feature of the typically M overall set-up are the aerodynamic
characteristics of the body, which help to give the BMW M550d xDrive and BMW
M550d xDrive Touring their precisely controllable dynamics. The sporty yet
elegant appearance of the two cars is complemented by a bespoke,
airflow-optimizing design for the front and rear aprons. The front view of both
models is dominated by large air intakes. For example, the spaces around the
outer air intakes normally reserved for foglamps on regular BMW 5 Series models
are used to enhance the inflow of cooling air. The three-dimensional shaping of
the front apron incorporates air-channelling flaps at the lower edge of the
outer intakes, which are split horizontally by bars painted Ferric Grey
metallic. The same shade is used for the exterior mirror caps and optional
20-inch M light-alloy wheels. BMW Individual High-gloss Shadow Line trim for the
B-pillars, exterior mirror base and window surrounds also comes as standard.
Its extremely powerful form and an integrated diffuser element allow the bespoke
rear apron of the BMW M550d xDrive and BMW M550d xDrive Touring to optimise both
the cars' sporting appearance and airflow around the underbody. A horizontal
trim strip on the top edge of the Black insert accentuates the width of the
body. The exhaust tailpipes, positioned far to the outer edges of the rear end,
come with trapezoidal embellishers in Chrome Dark. Another distinguishing
feature is the "M550d" lettering on the boot lid and front door sills.

BMW M550d xDrive, rear view.
BMW M550d xDrive: Review (2/2)