I flew SYD - BKK in Y and continued BKK - HKG in revenue F after a 6 hour lay over last year. The call center agent ask me if I wanted to use the Chauffeur drive service upon arrival in
HKG. The agent later apologised and said that Chauffeur drive service is not available for BKK - HKG bookings. In my opinion not much point paying the extra for F (over J) if this service is not available on this sector.