Audi's all-electric e-tron range continues to grow, combining the  brand's legendary quality and premium design with punchy powertrains  that won't hurt the planet. But considering that the e-tron Sportback  starts at nearly $80,000, it's hardly accessible to a broad audience.  Enter the smaller Q4 Sportback e-tron Concept, which Audi has just  teased via a 20-second clip that reveals quite a lot of detail in that  short space of time. Like the Q4 e-tron which is Audi's equivalent to  the Volkswagen ID.4 that leaked a few days ago, the Q4 Sportback e-tron Concept should be a lot more affordable than the bigger e-tron.
  
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