Excellent comments, and I agree with those who say it’s total miles that count, not MPG.
We put a total of about 12,000 miles on both cars, combined (big, old, dirty pickup & van) — and that’s a high-mileage year. There’s no way we’d be able to get around in a very small car, nor would we want to.
Yes, bigger cars tend to fare better in accidents. For those of us with kids, that’s a major reason for buying larger vehicles (as well as carrying capacity).
We do not speed, and are very defensive drivers. The worst drivers I’ve seen are the young kids in the “lawnmower cars” — you know, the small Hondas and such that sound like lawnmowers. As much as people complain about SUV drivers, I find these kids and the MBenz crowd are much more aggressive and threaten many more lives than the SUV drivers do.