FUEL-SAVING and emissions reducing technology is the new black in the automotive industry, with engine idle-stop the latest to be adapted widely by manufacturers.
An addition to the Audi A4 range this year that boasts parsimony as one of its key attributes is the Audi A4 TDIe.
The A4 TDIe doesn’t just rely on a common-rail diesel and an engine on-off function, but also employs other fuel-saving tricks such as regenerative braking and tall gearing.
The question is, does the Audi live up to its green credentials?
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