Baby hating car rides

Kass • I have a daughter who is 7 & a son who just turned 18 months.My heart is so full☺️
My baby is 4 months and not liking car rides unless I'm sitting in the bAck with him. We don't go for rides a lot, maybe once a day to the grocery store that 20 mins away. He fusses the whole time. I've tried toys and binky. Any one have any other ideas?