No, you're making yourself look foolish by making statements about things that have already been addressed - such as saying "no toolbox will stand up well to bouncing about in the back of a van". That makes you look foolish. I don't think I've been lucky; there's a user on here, in another current thread, that will tell you his toolbox (in his case, a Halfords box) has been fine in his van for ten years. The people I work with have had Snap On boxes on their vans for as long if not longer than me, and they haven't "rattled to bits" either. That's not luck, it's just buying quality, rather than tat. I've bought tat, and then I bought quality. Lucky would be buying quality, for the price of tat...

And no, I have plenty of tools in there thanks. In fact, more than I can actually fit in it, hence why I considering other options for more tool storage, such as a roll cab. Judging by your picture, I've three to four times the weight, and amount, of tools in my box than your plastic cart.

PS, to avoid looking foolish, I implore you again to actually read posts. I said 10 years, not 6.