Got rear-ended in a brand new car with 400 miles on it — what am I actually owed?

Oh man, this hits close to home. I was rear-ended about two years ago in a car I'd owned for maybe six weeks. The diminished value piece is REAL and the insurance company will absolutely try to lowball you or pretend it doesn't exist. I had to push hard and get an independent appraisal done — the number they came back with on their own was laughable compared to what a third-party appraiser said. Definitely don't just accept whatever they offer on that front.

That 'initial check to meet the legal deadline' thing is a classic move. They're not doing you a favor — they're starting a paper trail and hoping you cash it without thinking too hard. Some states treat cashing certain checks as partial settlement acceptance, so before you do anything with that check, make sure you understand what you're signing off on. Read every single word on the back of it.

Former adjuster here. A few things from the inside:

1. Diminished value claims on nearly-new vehicles are some of the strongest you can make. A car with under 1,000 miles showing accident history on a report is genuinely worth less, and adjusters know it — they're just counting on you not knowing how to document and push it. 2. That early check is a liquidity payment, not a settlement. But like others said, read what's printed on or attached to it before depositing. 3. Your dashcam footage still matters even with admitted fault — it can support the severity of the impact if there's ever a dispute about your injury claims later.

Please don't brush off the neck and back symptoms even if they feel manageable right now. Whiplash injuries are sneaky — the inflammation and muscle damage can take days or even a couple of weeks to fully declare themselves. Keep every appointment, follow through on any imaging they recommend, and document your symptoms in writing (even just a notes app on your phone each day). That record matters if this drags out medically or legally.

On the diminished value question — most states do allow you to claim it on top of repair costs, but the process usually requires an independent appraisal from a qualified appraiser, not just your opinion or the body shop's guess. The insurance company will likely have their own number that's much lower. Having your own appraisal gives you something concrete to negotiate from. Also, keep every single receipt, every medical copay, every rideshare or rental cost while your car is being repaired. All of that can be part of your claim. Not legal advice, just general process stuff.

Not legal advice, but I'll say this: the combination of a nearly-new vehicle, documented soft tissue injury, and admitted fault is exactly the kind of situation where people often leave real money on the table by settling too fast. Adjusters are trained to close claims quickly and cheaply. At minimum, I'd suggest getting a free consultation with a PI attorney before you sign or cash anything beyond that initial payment — most won't charge unless they recover something for you. The dashcam footage is a bonus, not irrelevant.

Stop talking to their adjuster without knowing your rights first. You're not required to give a recorded statement to the other driver's insurance. Be polite, but you can absolutely say you're still evaluating the situation. Every conversation you have is information they can use to minimize your payout.

I know this feels overwhelming but honestly — admitted fault AND dashcam footage puts you in a genuinely strong position compared to a lot of people who come here. You've got the documentation, you went to urgent care promptly, and you're asking the right questions early. That foundation matters a lot as this plays out.