Earnings will also gain from an increase in the sales of higher margin vehicle segments, such as SUVs and light trucks, due to low fuel prices. The automaker's South American operation has been facing challenges due to weakness in the industry, unfavorable exchange rates, high inflation, capital controls and changing regional trade policies. However, excluding the impact of weaker foreign currencies and the Remy International buyout, the year-over-year change in net sales for the first quarter is estimated to range between a decline of 0.3% and an increase of 2.7%.