The world's largest car carrier making its maiden voyage is generally cause for celebration. But in the case of Chinese car manufacturer BYD and its mammoth new BYD Shenzhen -- a 16,300 dwt, 9200 CEU, LNG Dual-Fuel PCTC that measures 219.9 x 37.7m with a 9.2m draft -- the ship instead represents the flooding of a market with cheap electric vehicles (EVs).