On my car, the cables just barely reach the posts. There’s no way (without modification) they could reach across the battery. I would assume that car manufacturers would do this intentionally, but perhaps not.
I once designed a tranny bracket that was almost but not quite symmetrical with an offset hole that was intended to match up with a small alignment stud in order to prevent misassembly. They were having some problems with the bracket out on the shop floor, so what did they do? Grind off the stud and then bore out the slightly misaligned holes. Never mind that they had this same exact problem on every single unit that came down the line; manufacturing didn’t get around to mentioning the problem until the trannys were (sometimes) coming loose in Inspection. :rolleyes:
It wasn’t entirely the assemblers’ fault; the bracket was, unbeknownst to me, assembled to the tranny first then to the chassis rather than the other way around as had been discussed during preproduction, and was being incorrrectly assembled to the tranny, owing to a process instruction sheet that documented the wrong way to assemble it, 'cause the first guy to put it together did it that way. What a mess.