Hi Gosh it sounds like you are going to have your hands well and truly full. Fudge sounds quite similar to how Charlie was, only more extreme in his reactions. They need to get him some help.
The way we resolved the car issue in the short term was by only letting him sit in the footwell of the car, in the back, and we used a slightly longer lead that we left dangling slighlty out of the door, so we could get hold of lead first. We also used to muzzle him. I am pleased to say that he now travels without the muzzle in either a dog bag or the boot without any issue at all as long as he cant see out of a window. He gets over excited if he can when we are moving, if you so much as touch him in these circumstances he loses the plot totally.
Good luck for the weekend.