Hmmmm. The forum may end up with two replies from me. The first one is lost in cyberspace, I guess. Anyhow....
Bogus warranty claims? My dealer would have a coming-apart-party. Just puts the dealership at risk. Besides, in the scenario you've described, the UC dept gets all the benifit while Service dept takes the hit for a chargeback. Don't let the UC manager twist your arm.
Cobbled repairs? It's the UC managers perogative to decide what gets fixed but NOT his job to dictate how the repairs are made. Cobbled repairs are a bad reflection on the service department.
Clunky old cars are sometimes part of the business. A sucessful used car operation needs a wide variety of cars....from $2599 specials all the way up to the creampuffs. If you suspect fraud, though, (odometer rollbacks, etc) that's a different matter. Often times a dealer doesn't know that these things are happening and would be furious if he did....the liability is just too great. If you are serious about this suspicion you may want to make it known. But, as a new employee....well, nobody can make that decision for you.
Many used car manager are convinced that saving money on reconditioing is the road to higher gross profits. In nearly all cases we've found the opposite to be true. Properly reconditioned cars almost always yield a higher profit. We show prospective buyers the wrok orders describing all the repairs we've done. This definately gives them more confidence in the car and justifies the higher prices we ask for.
The used cars business is perceived to be dishonest and often is. However, a dealer concerned about his reputation in the community will want decent merchandise out on the lot. Nevertheless, all you an do is fix 'em up the best you can.
Our Service Dept recons about 70-100 used cars a month....it's a great profit point. I could go on forever about this subject. I'd be happy to discuss the subject on or off-list with anyone who is interested. It's one of my (too few !) sucess stories

Doug