I've had this same call on my home phone and my cell phone. I've also been at my parents and they got the call. Tonight I talked to someone and they hung up on me. We don't have a warrenty on our vehicle, it's some scam.
I got the same phone call about 20 minutes ago. I got the feeling they were fishing for credit card numbers. I told the guy I spoke to, "Bill", that I had no warranty on my car and he immediately hung up on me.