Nah, not really. Automobile pricing is closer to traditional K offer/acceptance laws. Additionally no car dealer would advertise such a deal without including a clause stating the price is subject to (usually many) conditions and could change at any time.

False advertising is a rather narrow doctrine, one that by necessity has to interact with standard contract law. Cases where false advertising involves prices usually include issues like hidden fees (telecoms signing you up for X a month but then your bill includes Y fees that weren't disclosed to you). More commonly, false advertising concerns things like consumer deception - claims that something is "clinically proven" when it actually isn't, for instance.

In general, in contract law, if the changed price is communicated to you before you have accepted the offer, then there's no issue. There are literally hundreds of years of precedent going back to the English common law describing what does and does not constitute an offer and what does and doesn't constitute acceptance of an offer.

If they don't actually have any $5k trucks but claim they do in order to lure people in to try to sell them $25k trucks that would be a bait and switch that would run afoul of the law in several states. The FTC would probably also have something to say.

I tried to buy/lease a car recently and not a single one of the advertised prices was actually available. For example the commercials that say “lease a new 2021 Subaru for $250/month”. You get to the dealership and any of these following reasons could be why the car actually costs way more: that price is for a base model, they only have supreme models available at the dealer that price is only available to people with a 800 credit score you need to put 5,000 down and only drive the car 10,000 miles per year that promotion ended *the promotion is still going but that dealership doesn’t participate

Etc, etc etc.

The list goes on and on, but one thing is for sure- you will never get a car at the advertised price.

IANAL, but your experience sounds like bait and switch, which IS considered deceptive advertising.

It's not entirely unusual for automobile models to be in high enough demand that they are sold at higher than the advertised price (MSRP).