What would a vehicle efficiency standard for new cars cost — or save — Australian drivers?

Opposition leader Peter Dutton says Labor’s proposed fuel efficiency standard for new cars would push up the price of a Mazda CX30 “by about $19,000”.

Given that right now the Mazda CX30 costs $33,140, that’d be one hell of an increase.

So what should we really expect if Australia finally does introduce fuel efficiency standards here — decades after the US and Europe? What could it cost us upfront for buying new cars? And how much could we save later in lower fuel bills?

Here’s…