These people need to be stopped. They are pests, will argue with you. It is the old extended warranty scam. Pay attention, People, don't fall for this scam.
I too got a call on my landline phone--my caller ID showed ILLEGAL SCAM. She said she was calling about my car -knew the make /model of it. and mentioned extended warranty. I asked for her name- she gave her first name, then I asked for her last name, she said she WAS NOT GOING TO GIVE ME HER NAME and I told her I WAS NOT GOING TO TALK TO HER ABOUT MY CAR EITHER and I hung up. in the beginning I told her what my caller ID showed and she said "it shows that!" and there would be no discussion about my car!