A4 allroad quattro Audi S4 Saloon
48 Audi ultra
Audi ultra:
Every gram less extends the lead.
Audi ultra, the pioneering lightweight technology
from Audi, is more than just the sum of its
individual components. It combines innovative
materials, intelligent design principles and
production processes that use resources
sparingly into an overall concept. Many Audi ultra
lightweight measures have already been
implemented in the Audi A4 and S4 models.
That starts with the body itself. The steel shell
design of the Audi A4 and S4 models combines
low weight with high rigidity. The design uses
only as much material as necessary in the
respectively right places.
For the first time, hot-formed steel panels are
also integrated into the body structure in order to
further improve its function.
Drive technologies such as direct fuel injection
and turbocharging have made Audi engines more
and more powerful. The modern TDI and TFSI
engines in the Audi A4 and S4 models produce
more power with a smaller engine size, making
them significantly lighter than the corresponding
engines used in earlier series.
Each lightweight component has an effect on
other components, allowing their dimensions to
be reduced as well. The result is a continuous
development process towards less and less
weight and more and more efficiency. In figures:
a vehicle that weighs 100 kg less can save up
to0.3 litres of fuel per 100 km.
Audi ultra on the podium: the Audi R18 ultra
The fuel consumption and CO₂ emission figures can be found from page 108 onwards.
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