There's a seismic shift going on in the car industry, driven by financial instability, forever-rising gas prices, and drastic changes in government mandates. Curiously, the used car market has cooled off and prices are somewhat reasonable, but it is also showing that car buyers are thinking carefully about costs.TeslaIt's no secret at this point that, while new EV sales are off in the US, used EV demand is up. According to iSeeCars, the demand for used hybrid vehicles is also up, 41.8% to be exact. But a rather surprising stat came out of their most recent report, courtesy of Tesla. Not only are used Teslas holding value on the used market, they're among the fastest-selling used cars available today. And you won't believe which one is the fastest-selling of them all. No, it's not the Cybertruck. But it does rank in the top.The numbers referenced in this article are based on an iSeeCars study published April 29, which claims to have analyzed over 6.7 million 1- to 5-year-old used cars sold in Q1 2025 and Q1 2026 to determine shifts in market share, average listing prices, and days on market for gasoline, hybrid, and electric vehicles. Tesla's Downfall Makes For Value On The Used Market Tesla In general, used cars are taking longer to sell in the US in 2026. Tesla is the exception, with a 3.8% slowdown in sales rate compared to a 33.6% slowdown for gas-only cars, a 20.2% slowdown for EVs, and a 20% slowdown for non-Tesla EVs specifically. As we've pointed out recently, you can buy a 1,000-horsepower 2022 Model X Plaid for $54,600 in 2026 – a car that had a $140,190 as-new sticker.Perhaps that's why the Model X is now the fastest-selling used car in America. According to iSeeCars, one sells on average within 25.6 days of going on sale. It goes a bit quicker than number two on the list, the Lexus RX 350h, at 27.6 days. Lexus and Tesla dominate the top-10 fastest-selling used cars, with those two brands accounting for six vehicles total.The reason sales of used Tesla models haven't slowed down is because they are plentiful, and that started last year when Elon Musk dove into politics, stirring up controversy and alienating many Tesla owners in the process. But, it appears that the real bargain for used EV shoppers right now is the Volkswagen ID.4. According to iSeeCars research, the average price of a used ID.4 in March of 2026 was $21,623 – 13.2% ($3,300) down on last year. It's the largest price drop in the study, EV or otherwise. A Closer Look At Prices FordThe second-largest price drop in used EVs is the Ford Mustang Mach-E, with an average price in March this year of $29,373. Frankly, the Mach-E and ID. 4 seem like better purchases for a used EV due to more plentiful and stable dealership support, although Tesla wins out when it comes to charging with a huge network of fast chargers available. Hybrid Is King Lexus While the Tesla Model X is the fastest selling used car from dealership lots, the Lexus RX 350h is the second bestseller, closely followed by the Honda Civic Hybrid. With hybrid demand way up, it amounts to a seismic shift that will likely continue with fuel prices approaching record levels due to the war with Iran. That also means there could be some very good deals on gas-only cars coming soon – if you don't mind footing an expensive fuel bill.