购置税跟国产或进口无关,只与排量有关,若该车排量为1.6升及以下,车购税税率为7.5%,则应交购置税为91800/1.17*7.5%=5884.62若该车排量为1.6升以上,车购税税率为10%,则应交购置税为:91800/1.17*10%=7846.15