Driving unregistered car in Texas and SD vehicle registration

[The Duck]

One important note re South Dakota -- you need to give them a US address where they can send your plates and tags. You Do Not tell them about Mexico [they probably know but as a matter of discretion leave the subject out of the conversation] Just tell them your car is currently plated and titled in X state and you would like to switch to SD. They will ask info about the car [VIN, year etc], your [US] address and your birth date. The lady will then advise you how much to pay - which can be done by cc on-line via a 3rd party site or you can send the Registrar a US check. Its all straight forward and the Clay County office is very friendly and nice. Once my sister over-paid for me and we received a hand written note with 3 quarters and 2 pennies taped to it.

You can find everything you need to know on a 3 page Chapala.com post