My brother was a CDJR salesman for years & now works for a bank who audits them. I can confirm it’s against FCA rules for dealers to order in that manner and they can penalize dealers for that - even revoke their license if they ignore & continue.
Not to say that it might not bode well in your favor which in the end is all we really care about anyway. I almost ordered a truck in the same manner but went with a different dealer instead. I told them what the other group was doing for me & they explained the same thing that
@Eighty did. Said they don’t deal that way & that it’s not worth the risk & fines of getting caught by FCA.
Sometimes when dealers operate like this there’s other shady things they can be doing also. Staff/management can end up in prison due to fraud if they dabble too far. But also end right back into a managers seat after parole. This is one reason my brother left his long term dealership.