Make sure you get Agreed Value when purchasing insurance.
Agreed Value means that your car is insured based on an amount that the insurer and you have agreed on.

I would say you puchased your insurance through an agent which is "ahem:" not so honest in insuring your car.

We dont "overquote" on car values because this will lead to arguments if there are any instances of claims.

no such thing as wrong value
the price u got from dealer is how much they think it's worth for that condition...and dealer usually lowball the customer when they want to sell it(they have to make profit from it)

what insurance company give u is the real market value of the car
u CANNOT sell your car at market value....if you want to sell your car same as market value, your car has to be in immaculate condition
what figure insurance companies give are roughly the same and is the market value of the car
different from the figure dealers would give