Subaru Forester 2014-2021. The Subaru Ascent is a part of the Subaru Legacy series, which includes the Subaru Impreza and Subaru Outback. It has been designed to be compatible with all Subaru models including the 2015-2020 model. Subaru’s Crosstrek comes with a lifetime warranty against manufacturing defects. Notably, Subaru discontinued production in 2015.