8000rpm 2km/h car says to 電訊台 https://www.hk01.com/%E7%A4%BE%E6%9C%83%E6%96%B0%E8%81%9E/302060/%E6%94%BF%E7%AD%96%E5%88%86%E6%9E%90-%E8%81%96%E4%BF%9D%E7%A5%BF%E4%B8%AD%E5%AD%B8%E5%A0%B1%E8%AD%A6%E8%B6%95%E5%AD%B8%E7%94%9F%E6%9C%89%E5%B9%BE%E9%9B%A2%E8%AD%9C-%E6%95%99%E8%82%B2%E5%B1%80%E6%8C%87%E5%BC%95%E5%92%81%E8%AC%9B 。。。