Is it Hall VW? They have been one of most prolific dealers for CR TDIs. We almost bought a car from them, but held out for some different option combos.
IMO the Golf and Passat are very different cars, based usually on different interests. The Golf is MQB, the Passat is NMS.
I'd also take the 6MT over the DSG or auto any day.
I wouldn't assume anything, and if they can't produce the maint history by VIN, it didn't happen. Check the date on the tires, they are likely 2015. A search will reveal the list of items VW Dealers were directed to replace/refresh on buyback cars. Dealers can add to the list based on their own inspections, or via customer request. Most dealers were good about following the list, some others weren't. We have a stop-sale GSW and buyback GSW, and both received different refresh items, between batteries, tires, fluids, wipers, etc. CPO cars have an additional layer of inspections that generally are universal, but the quality of follow-up depends on the quality of the dealer. Many dealers had a systematic process for giving the buyback or stop-sale cars attention (start car monthly, let engine run, move it 100 yards and park it), while many others did very little to cars that were sitting.
The CPO warranty isn't especially helpful, but the Diesel settlement warranty is a reason to buy.
It's normal and expected for the oil to be black after running only a short time. In fact, if it's not, it means the car wasn't being run, which isn't good if it was sitting.
A search of the Mk7 forums will reveal more issues and answers.
