Gas prices surged to more than $5 a gallon on average in June.San Francisco Chronicle/Hearst Newspapers via Getty Images / Contributor An Uber driver who swapped her Toyota Camry for a Tesla Model 3 said she'd doubled her tips as a result. Heidi Barnes told Bloomberg that customers were "a lot more generous" now she's in a Model 3. "Usually I'm lucky to get $1 to $3 tips but it's now $10 or $15, sometimes consecutively," she said.