It's not even worth 10% of that, it's a 23 year old BMW. But insurance for that in England would still be very high, because it's got a very polluting engine, it's a BMW, and it was very popular with drug dealers in the Eighties.
... and tons of other information.
They do ask a lot, but not in comparison to the English interrogation, that's all. If you've not got any points or had any accidents, getting insurance in Poland is a very quick process