The sustained economic growth seen throughout the year in the US has also been supported by the fact that combined new and used auto sales are forecasted to reach a record $1.1 trillion by the year's end. According to data service providers, Americans are poised to end 2014 with purchases of 54 million new and "previously owned" cars, trucks and crossovers - and the financial figures are expected to double by 2020, according to numerous industry reports.