I include F&I into the new and used sales. Even back end on new car deals isn't as good as on used. There was a program through 'The Finance Company' that let us stick Airmen with whatever car in trade for half their pay for the rest of their enlistment, it was a horrible deal, but it made money; I wouldn't sell under that plan. Anybody who does more than 30days in the car business has a stop in hell coming to them lol, how long that stop is depends on your actions.
If the kid had a parent with good credit though who could consign, I could sell them a new Cavalier with a good warranty for a much smaller payment on factory financing. I hardly made anything off those deals either, they were all 'minis' that paid $400.