Law / Return Policies for car or motorbikes purchases in Poland? [2]

I was just wondering what the law states about returning a car or motorbike back to the dealer if you found some problems soon after purchasing it. I know that in some countries as a buyer you have the right to return an item to the supplier if you're not happy with it or if the supplier/garage didn't tell you everything before you purchased it. Is there a law like this in Poland to protect buyers?