Chinese automobile stocks tumbled today, with some analysts believing the main reason was BYD cutting prices of 22 of its car models, which they expect will lead to another round of price war. BYD [HKG: 1211] plunged 8.7% as of 2.50 p.m., Geely Auto [HKG: 0175] fell 8.7%, and Great Wall Motor [HKG: 2333] declined 5.4%. Also ETFs sank today, with the ChinaAMC CSI HKC Automobile Industry ETF [SHE: 159323] and GF CSI HKC Automobile ETF [SHA: 520600] both plunging 4.5%.