BRASILIA, April 19 (Reuters) - Japanese automaker Honda will invest 4.2 billion reais ($807.74 million) in its Itirapina plant in Brazil by 2030, an executive said on Friday, adding the company aims to develop a hybrid-flex vehicle in the South American country.

($1 = 5.1997 reais) (Reporting by Lisandra Paraguassu; Editing by Kylie Madry)