Share with friends and circles of friends with wechat scanning QR code < / P > < p > on December 9, the test project submitted by American electric vehicle manufacturer Tesla to European regulators shows that Tesla will adjust and improve some functions of its new model 3 and model y next year p> < p > < / P > < p > it is reported that Tesla plans to replace the 12V batteries carried in model 3 and model y with lithium-ion batteries. Previously, Tesla's high-end electric vehicles model s and model X have been equipped with 12V lithium-ion batteries p> < p > in addition, Tesla will configure higher performance motors for the high-performance model 3 and use the same AMD ryzen chip as the high-performance model y p> < p > Tesla used double-layer sound insulation glass on the front window of model 3 in 2021 to reduce the noise in the car. The rear window of 2022 model 3 will also use the same double-layer sound insulation glass, which will further improve the sound insulation effect of the car p> < p > Tesla will also introduce the "super speaker" function in model 3 and model y, which will be offline next year, integrating car speakers, sirens and external speakers. Last year, Tesla announced that all model 3 produced after September 1 of that year would be equipped with external speakers to remind pedestrians. Car owners can also preset the sound emitted by external speakers. Now this function may be integrated into the "super speaker". (Chen Chen) < / P > < p >