well, ford does have a bad reputation for 'found on road dead' but you should definetly ask the seller a lot of questions, such as
has the oil been changed regularly
last time the timing belt was replaced
how are the brakes
if its a manual- how long since the clutch was replaced
look at how many miles are on the car
how many previous owners, if its had a lot of previous owners, they might have driven the crap out of it and it might be about to blow up.
honestly, if your looking for a nice sporty car with good gas mileage i would look for a honda prelude, or 2 door civic/accord coupe. maybe an acura integra from the 90s.
hondas and acuras have a reputation of being very reliable. no matter how much they have been driven the crap out of. and you can find a honda civic hatch on craigslist for cheap!! they are great cars and insurance would be much cheaper on a honda.
i know this from much experience. i have had 9 cars in the 3 years i have been driving and learned the hondas are the cheapest most reliable. although i do own a ford now and i love it, i would reccommend just doing your research and finding out if it will be reliable for you.
even though it may be cheap to buy, if its not been taken care of, it could cost a lot more to maintain.
thats just my opinion though, im no expert!