sounds like a regular old scam to me, what makes this any different than the Nigerian Prince or the phone call to old people that goes "grandma!, it's your grandson and I'm in trouble out of town, can you wire me some money?"? And it's not THAT different from the "your car's about to go out of warranty!"
Don't give money to people online unless YOU set up the deal. Period.
I've been trying to reach you about your cars extended warranty
Yeah. There are government programs that rely on intermediaries like me to allow you to deduct 50% off your car insurance. All I need is your credit card password and information.