My car got fixed but now it's worth way less — can I actually get compensated for that?

Yes this is absolutely a real claim — I went through the exact same thing after a side-swipe took out my whole passenger door. The first number they gave me was laughable. I got an independent appraisal from a certified auto appraiser (not a dealer, an actual DV specialist) and it came back way higher. Brought that to the insurance company and they came up significantly on the offer. Don't just accept what they send in that first letter.

That formula they're using is a negotiating tactic, not law. Insurers didn't invent it because it's fair — they invented it because most people don't push back. The second you say "I have an independent appraisal that says otherwise," the whole dynamic shifts. They're counting on you being confused and just taking the check.

Former adjuster here. I'll be straight with you — that percentage cap formula gets applied as a starting point precisely because a large portion of claimants accept it without question. It's not a legally binding cap in most states. The actual standard is supposed to be the real-world market value difference before and after the accident. An independent DV appraisal from a qualified appraiser gives you documented evidence to counter it. Once you have that in hand, the conversation changes completely.

A couple of practical things worth knowing: diminished value claims are typically filed against the at-fault driver's liability coverage, not your own insurance, which sounds like your situation — good. Most states allow it but a small number have quirks, so it's worth a quick check on your state's rules. Also document everything: get dealer trade-in quotes in writing, save that formula letter they sent you, and if you hire an appraiser make sure they're certified and experienced specifically with diminished value, not just general vehicle appraisals.

Not legal advice, but diminished value is a legitimate category of damages and the formula they sent you is not some official industry standard — it's a common lowball tactic. The fact that you have real-world dealer quotes showing a measurable drop in value is actually useful evidence. If the gap between what they're offering and what you've lost is significant, it might be worth at least a free consultation with a PI attorney who handles property damage claims. Many won't charge unless they recover.

Not my usual lane but I just want to say — are you doing okay physically? Rear-end hits can do soft tissue stuff that doesn't always show up right away. Hope you got checked out. The truck stuff matters but so do you.

The fact that they already accepted liability and the repairs are done actually puts you in a decent position compared to a lot of people here. You're past the messy part. Now it's really just a documentation and negotiation game, and that's very winnable if you go in prepared.