Car seat configuration for new baby!!

Caitlin

Hi ladies,

My Jan 18 toddler is in a front facing car seat situated behind the passenger seat. We will be bringing home her baby sister in a couple short weeks. Would it be better to put the infant seat in the middle seat, or move my toddler behind the driver seat and put the infant seat behind the passenger seat. It’s hard to find an answer online! Thank you everyone!!