At a gas station near the Cologne, Germany, airport, Bernd Mueller watches the digits quickly climb on the pump: 22 euros ($23), 23 euros, 24 euros. The numbers showing how much gasoline he’s getting rise, too. But much more slowly. Painfully slowly.
“I’m getting rid of my car this October, November,” said Mueller, 80. “I’m retired, and then there’s gas and all that. At some point, you’ve got to scale back.”
Across the globe, drivers like Mueller are rethinking their…