I'm looking to purchase a new car soon. I came across an ad for a 2013, Nissan Sentra SV with 3200 miles for $14,000. According to the ad, the car had not been driven much because the owner has some health challenges. I think it's a great deal because of the low mileage, but my father seems to think I can find one less expensive. Should I jump on this or keep shopping around?