Sonic Automotive's EchoPark names VaynerMedia as its first agency of record

Sonic Automotive Inc.'s fast-growing used vehicle unit EchoPark Automotive has named VaynerMedia as its first agency of record, following a pitch process that began in March. EchoPark, which launched in 2014, said now that it has firmly established its infrastructure and expanded its footprint, the goal is to invest in marketing to build the brand through digital media.