Cargurus's used car price trends does exactly that. You can even change the scale of the graph to see trends longer than the last 6 months. https://www.cargurus.com/Cars/price-trends/ There are a couple limitations obviously. First of all it only tracks listing prices, not what cars are actually selling for. For certain more rare cars/trucks there can be a lot of listings for more than they are actually worth and that will throw off the graph. In those cases sites like Bring a Trailer or the Hagerty price tool ( https://www.hagerty.com/apps/valuationtools/search/auto ) might be closer to actual values. Other limitation is you can break it down generally but make, model, and year but can't go by sub-model, trim, body style, or engine. In some cases this creates anomalies like it saying the average listing price of a 2011 Porsche 911 is currently $94k. That's obviously being thrown off by low-mileage GT2RS and Turbo S models for sale because a more common 2011 C2S even in mint condition is worth less than that. Similar thing for even more common cars though like a 2018 BMW 340i is obviously worth a lot more than the $26.5k average it states for 2018 3 Series. More on reddit.com

Let’s all be respectful to others when commenting. More on reddit.com

The same things you are noticing are the things that switched me from buying used to buying new. When the cost difference is so small, it makes more sense to buy new. More on reddit.com

Used car prices are out of control for sure. Looking at something other than a Honda or a Toyota helps. And as much as it’s more work up front, buying from a private seller will save you thousands compared to a dealer in many cases. If you’re really sticking to a budget, it’s just gonna get you a lot more for the money More on reddit.com