Alfa Romeo 4C Owner's Handbook Manual page 116

DRIVING STYLE
Starting
Do not warm the engine with the car at
a standstill or at idle or high speed:
under these conditions the engine
warms up much more slowly, increasing
consumption and emissions. It is
therefore advisable to move off
immediately, slowly, avoiding high
speeds: in this way the engine will
warm up more quickly.
Unnecessary actions
Avoid accelerating when stopped at
traffic lights or before switching off the
engine. This action is absolutely
pointless and only increases
consumption and pollution.
Gear selection
Using a low gear for faster acceleration
increases consumption.
In the same way, improper use of a high
gear increases consumption,
emissions and engine wear.
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Max. speed
Fuel consumption increases
considerably with speed. Maintain a
constant speed, avoiding unnecessary
braking and acceleration, which cost
in terms of both fuel consumption and
emissions.
Acceleration
Accelerating violently will greatly affect
consumption and emissions: avoid
frequent and strong accelerations.
CONDITIONS OF USE
Cold starting
Short journeys and frequent cold starts
do not allow the engine to reach
optimum operating temperature.
This results in a significant increase in
consumption levels (from +15 to +30%
on the urban cycle) and emissions.
Traffic and road
conditions
Rather high consumption levels are
linked to situations with heavy traffic, for
instance when travelling in queues
with frequent use of the lower gears or
in cities with many traffic lights.
Stops in traffic
During prolonged hold-ups (e.g. level
crossings) the engine should be
switched off.