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  "path": "/2026/05/20/what-actually-makes-hybrid-cars-fuel-efficient.html",
  "publishedAt": "2026-05-20T17:29:47.000Z",
  "site": "https://boingboing.net",
  "tags": [
    "Post",
    "cars",
    "Engineering",
    "explainer",
    "fuel efficiency",
    "hybrid vehicles",
    "Technology",
    "toyota",
    "a 55-minute deep dive on why that assumption is wrong",
    "Read the rest",
    "What actually makes hybrid cars fuel-efficient?",
    "Boing Boing"
  ],
  "textContent": "The 2021 Toyota Sienna is a three-row AWD minivan that gets 34 mpg city and highway — beating its nearest rivals by more than 50%. Most people assume the batteries and electric motors explain that number. Alec Watson at Technology Connections has made a 55-minute deep dive on why that assumption is wrong, and the actual answer goes back to 1887. — Read the rest \n\nThe post What actually makes hybrid cars fuel-efficient? appeared first on Boing Boing.",
  "title": "What actually makes hybrid cars fuel-efficient?"
}