Do these compact sedans really deliver the claimed fuel efficiency?

Fuel efficiency is, for obvious reason, a big selling point and is advertised heavily. Automakers use ARAI figures—a government owned certification body—that are derived from certain tests it performs.

Remarkably, these numbers seem to vary widely from real world figures.? And strangely, certain cars score very high but others don’t.  Why?

Let’s look at the petrol sedans across three categories:

Compact sedans: The new Maruti Suzuki Swift Dzire tops the list with a claimed mileage of 19 kmpl. Toyota Etios and the older Dzire follow with 18 kmpl. At the bottom of the list is Mahindra Verito with 14 kmpl.

  1. This raises two questions: Do the cars at the top give such high fuel efficiency?
  2. Is there really a 5 kmpl difference between Dzire and Manza?
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