NEW YORK--(BUSINESS WIRE)--The shift away from smaller, more fuel-efficient vehicles could result in lower wholesale vehicle prices and marginally slow the asset performance of auto ABS transactions in 2015, Fitch Ratings says. Sales of trucks and SUVs reached the highest level in over three years through the end of 2014, while sales of cars have been declining since 2012. Fitch expects used vehicle supply to rise in 2015 and place pressure on wholesale vehicle values. Additionally, low gas pri