THIS IS HOW MUCH HAS GONE IN.
At BMW, we create dynamic vehicles that thrill you with quick acceleration, predictable handling and unshakable control. We are also busy
⇒ nding innovative fuels and technologies that help preserve the environment while delivering legendary performance. This is what we refer
to as “Ef⇒ cientDynamics.” This goal led to the visionary CleanEnergy hydrogen-powered engine in the BMW Hydrogen 7 Sedan. In 2009,
BMW introduced Advanced Diesel with BluePerformance in the U.S., offering diesel power with quick acceleration, increased fuel ef⇒ ciency
and reduced emissions. And now, BMW’s ActiveHybrid X6 and ActiveHybrid 7 vehicles combine combustion and electric power to boost
performance while simultaneously reducing fuel consumption and CO
2
emissions. At BMW, we are driven to do much more with less.
Lightweight construction
Our engineers use lightweight aluminum
throughout our vehicles – in the front section,
for example, or for the suspension. BMW’s
inline six-cylinder TwinPower Turbo engine
is all aluminum; the naturally aspirated inline
six is an aluminum/magnesium composite
– the lightest in its class. Taken together,
these weight savings lead to lower fuel
consumption and better axle load distribution
for more agility – especially in curves.
Efficient transmissions
The 1 Series Convertible offers a choice of
transmissions, each designed to maximize
efficiency. In both models, a smooth-shifting
6-speed manual is standard. Automatic
transmissions are also available: a 6-speed
STEPTRONIC automatic in the 128i, and in the
135i, a quick-shifting 7-speed Double Clutch
Tra nsm is sion .
Valvetronic
Instead of using a traditional throttle,
Valvetronic technology in the 128i lets the
engine breathe more easily by varying the
lift height of the valves to regulate air intake.
The result: improved cold starts, smoother
running, and a significant drop in fuel con-
sumption. Using revolutionary tech nology
such as this, BMW has improved its overall
average fuel economy more than any other
manufacturer.
TwinPower Turbocharged engine
Benefiting from BMW’s TwinPower Turbo-
charging technology, the 300-hp 135i delivers
quick acceleration without any “turbo lag.”
Fuel economy is strong, as well, thanks to
precise piezo direct fuel injection.
Double-VANOS
VANOS is BMW’s valve timing system
that can “steplessly” vary the points in
the combustion cycle when valves open
and close. Double-VANOS refers to the
fact that it operates on both the intake
and exhaust camshafts. Electronically
controlled in response to engine speed,
load and temperature, VANOS reduces
emissions, and enhances low- to medium-
speed torque, as well as fuel efficiency.
