New-vehicle gross per unit fell from $3,152 to $2,881 year over year in Q1 2026, down 9%.
For a lot of stores the used department has been quietly underwritten by the new side and by service. That is a reasonable way to run a business right up until both of the things doing the underwriting start compressing at the same time.
The plan that stops working
Everybody knows the sequence. Short on inventory, the desk bumps the bid. Get the car now, sort the margin out later. Ninety days on it is aged and repriced, so you take the bath, and the plan becomes make it up in the box and count on service to carry the store.
That plan has an assumption in it: that there is enough gross downstream to absorb a buying mistake. With used at $1,528 and new down 9%, the absorption capacity is smaller every quarter, and the same mistake costs more than it did last year.
A bad buy used to be expensive. Now it is not covered.
What it changes
Nothing about how you sell. Everything about the tolerance for buying wrong. When there was three grand of new-car gross and a strong fixed operation behind you, a unit bought five hundred over was an annoyance. It is not an annoyance now, and no amount of work on the back end fixes a car that was bought wrong at the front.