So Donald Trump thinks car companies have been smuggling CARS over the border?

Is that what he was trying to say?

If you (car companies) think you are going to be bringing your cars over our border, with the wall, and we're building a wall because there hasn't been, we're going to have strong borders not like they have been, they've been like an open sieve . .

You're not going to be bringing them anymore because we will have a secure border.