Mexican websites are notoriously out of date and what applies to a Mexican national may not apply to you. The rules are also different in 'la zona frontera' than in the interior of Mexico. As above, anything is possible but it will be very complicated and very expensive. It is also not without risk, since, as I understand it, you may have to transfer title to a Mexican national for the 'importation' and trust that it will be transfered back to you. That said, the entire situation remains in flux as Mexico tries to eliminate older vehicles.

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Read "Streets of Glass" to discover the experience of a retired couple's permanent move to Lake Chapala, Jalisco, Mexico.
PM for details.