a so-called peer-to-peer outfit, flightcar allows customers to rent and drive other people's cars.works. let's say you're going out of town. instead of leaving your car at long term parking, you'll drop it off at san francisco's flightcar. then they will rent your vehicle to someone coming into town. >> the big draw, i think, was the convenience. the price. and the type of cars they had. >> reporter: while others may just see cars coming it in different airport lots, these three saw an opportunity. >> thousands of cars that are owned by different people, paying $18, $30 a day just to have them sit there doesn't make sense. >> reporter: rates for renters are rock-bottom, starting around 4 bucks a day. and how does that compare to avis or hertz? >> you'll probably be paying at least around $40 or $50 a day at, you know, one of the major rental chains. >> my car's not doing anything, why am i just paying for it to sit there. >> reporter: flightcar launched in summer 2012. and with their locations at boston's logan airport and here in san francisco, the company says they now have an av

well, flightcar's ceo was on the phone with me this afternoon and he tells me they are not a rental car company. although if you go to their website, you will see that there's all kinds of information there teaching you and instructing you how to rent a car from his company. so there's a little dispute going on. he says they are more like a mix between ride sharing and off airport parking. so should they be exempt, should they have to pay? the city says this is kind of an open-and-shut case. they have until july, does flightcar, to answer the complaint, the allegations, or this whole thing could be headed to court. live from millbrae, i'm ken bastida, kpix 5. >> quick question. the lot that is behind you, it's not in san francisco, it's in san mateo county. so why is san francisco able to sue them. >> - >> reporter: we're right on the border of millbrae and burlingame. this is in burlingame. here's the deal. because they are doing business at sfo, they are considered a vendor. they are using the airport and its attraction and people who go there for flights and come into the city. that'