** Hong Kong shares of Chinese electric vehicle maker BYD Co 1211.HK rise 4% to record high at HK$431.2

** Stock is top pct gainer on Hang Seng Index .HSI and Hang Seng Automobile Index .HSAMI

** Shenzhen-listed stock 002594.SZ climb 3.2% to 385 yuan, highest since March 28

** BYD is set to launch its new EV model e7 on May 17

** Hang Seng Index slips 0.3%, while Hang Seng Automobile Index climbs 0.7%

** YTD, BYD's Hong Kong stock up 59.8%, Shenzhen shares up 32%

(Reporting by Donny Kwok)

((donny.kwok@thomsonreuters.com))