> Sure, a Dodge Caravan in 2018 may have a lower inflation-adjusted price than the 1996 model, but the author never claimed that every individual item's price increased faster than the measured rate of inflation.

It was the author that uses the Dodge Caravan example. Obviously not every single item is going to fit the trend, but why pick such an item as your example.

Your other points are also incorrect. For example, auto loan interest rates are half of what they were in 1996: https://images.app.goo.gl/Bn3ACY7GLV8rFsxj7. The total interest paid on a 36 month loan at 8% (common in 1996) is higher than on a 60 month loan at 4.5% (common today).