These graphs show that both the Mexican currency, the Peso, and Brazilian currency, the Real, are collapsing.
The Peso under pressure
Back to the March 2009 lows
And the Real is under pressure too (back to the 10 year lows)
Oil Producers FX rates push to new cycle (or record) lows
Source: http://www.zerohedge.com/news/2015-01-30/mexican-peso-collapsing