Boo is not happy in the car. He doesn't hate it, he's just not happy. He's all about the destination, not the trip.
Anything longer then a few minutes and he starts the "Are we there yet?" whining.
I take Gracie Ruth with me whenever possible. I do feel somewhat bad for Boo being left at home, but I give him extra biscuits before we leave and I think he rather enjoys the quite time when the pesky little sister isn't there to bother him.
Boo does like to cuddle and I just make sure to spend extra, just him and me cuddle time with him. He also likes to be in the backyard a lot. Some Saturdays I must open the back door for him 50 times. But that's a small price to pay to have him happy.