We recently ordered a new car inheritance, we're not loaded & carefully planned precisely what we wanted. Contract signed, all fine. 10 days later we get an email letting us know that the one option we really wanted above all else isn't available with that engine. There are no bigger engines available on the trim level we chose & it would be a big jump financially to go up a trim level & get a bigger engine - something we can't afford.
The issue is that they sold us the car, telling us this option was available. They now say that information was incorrect on the dealer's site & will be updated. Obviously, we can't make them add features that don't work with the engine, I'm just incredibly frustrated that they sold us something they can't deliver. I have ASD & my brain won't compute that this is in any way ok. I don't even know what I want them to do about it - I can't imagine they're likely to give us an upgrade! It's just not fair. We had it all planned & I have a contract saying we can have what we wanted! 
Sorry, just needed a rant... DH is being all reasonable about it. It's not fair. I was so excited to get to choose exactly what I wanted from a car.