Two cars can feel almost automatic after decades of commuting, raising a family, and juggling separate schedules. Retirement changes that equation, especially when one vehicle starts spending five or six days a week parked in the driveway while you continue paying to own it. According to AAA’s 2026 Your Driving Costs analysis, owning and operating a new vehicle now averages $12,863 annually, although a paid-off older vehicle driven relatively little could cost dramatically less. That doesn’t mean every retired couple can instantly save $12,863 by selling the second car, but it does show how many expenses hide behind the idea of one-car retirement savings. Before assuming you still need two vehicles, add up these costs and compare them with what sharing one car would actually require.