That happened to me when I took my 1957 Bel Air Nomad in for repairs.
The garage gave a 3 year old Toyota Corolla as a replacement.
In court they proved the Corolla was worth more than the Bel Air's original selling price of $5,300.
I miss that car.
If I had a 1957 Nomad wagon and someone tried to scam me out of it, I have I don't know what I would do, but I could see me going on full tilt... locked & loaded