weird question

K my dad is selling his car and i really want it. He says if he doesn't sell it in 2 weeks than he'll sell it to me for cheap. What i want to know is if there is an easy and safe way to make it look like there is something wrong with the car to a non mechanic but takes like just two seconds to fix? I know this kinda sounds mean but i want the car so bad.
Thanx

um, just tell him that u really really want it, and that u will take very, very good care of it. if it's ur dad, he should understand. it is kinda mean that u wanna lie to ur dad though, hehe