Errrr, a tongue tied cigar

I found this Spanish tongue twister on the internet.

Erre con erre cigarro, erre con erre barril,
Rápido corren los carros cargados de azúcar del ferrocarril.















 Translated one might render it thus:

"R" with an "r" cigar, "r" with an "r" barrel,
Rapid run the rail cars carrying the railroad's sugar.