Complex sentence: Announced by Mr Spencer B Wilks, managing director, 23 September 1949 the new Rover 75--now the only Rover in production--was first displayed at the opening day of the Earls Court Motor Show on 28 September.
Split into simpler sentences: Announced by Mr Spencer B Wilks, (Managing Director) on 23 September 1949 was the new Rover 75--now the only Rover in production. First displayed at the opening day of the Earls Court Motor Show on 28 September.