Here comes the bride

Hannah is the daughter of some old friends and today she married Ben. This is her and her father driving to up the church (fashionably late) in his MGB.
I wondered how the bride and groom would get back to reception (about half a mile) in the MG. They solved the shortage of seats by walking.
Hannah's mum, Jane, delivered both Adam and Rosie. Adam in the hospital in Welwyn Garden City and Rosie at our home.
I hoped to get a reasonable shot panning to get movement blur, this is about as good as I got; except for one showing the back of their heads. Any tips on how to produce a successful panning shot will be greatly appreciated.