Twin-scroll turbocharging
The new four-cylinder engines also feature twin-scroll turbocharging. This means that the exhaust stream from cylinders 1 and 4, and the exhaust stream from cylinders 2 and 3, follow separate spiral-shaped paths to the turbine wheel. This reduces exhaust back-pressure at low engine rpm, allowing the energy of the exhaust gas pulses to be utilised as efficiently as possible. The result is instant throttle response and fast-revving performance which BMW drivers can instantly translate into driving pleasure.
See also:
Treble, bass, balance, and
fader
▷ "Treble": treble adjustment.
▷ "Bass": depth adjustment.
▷ "Balance": left/right volume distribution.
▷ "Fader": front/rear volume ...
Automatic deactivation of the frontpassenger airbags
The system determines whether the front passenger
seat is occupied by measuring the resistance
of the human body.
The front, knee, and side airbag on the front
passenger side are activated or de ...
Exterior
BMW says the front-end modifications for 2006 have been "executed with the
utmost reserve and subtlety." In addition to the restyled hood, the 7 Series
sedans have reshaped rocker panels ...