model designations???

Former Member
Former Member
I don't see a dedicated Automobile forum so I'll ask here. If this is inappropriate please direct me to the appropriate forum.

What do all the different model numbers and letters mean? I understand LMT means lifetime maps and traffic, or at least I think it does.

But what about the differences between "Drive 6" and "Drive 61"? What does the "S" mean as in "Drive 61-LMT-S?

Etc, Etc.

Thanks.