By 2020 we will have three EVs in the line-up,” said Stadler. “We’ll start with the production version of the e-tron quattro concept car, which will have a range of up to 500km. By 2025, 25% of our line-up will be battery-driven models.”
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Audi loves to talk. They seem to have great difficulty making a BEV. The make one "concept car" and then they fail to follow through.
By 2020 Tesla will be well beyond where they currently are, and currently they are far ahead of all other manufacturers. Audi will be playing catchup forever.
And Audi has no long distance high speed DC charging network.