Welcome, First things is make sure it has a FSH, also get an HPI check, if the car does not look in good condition or is dirty when you go to view the car, could be well to walk away, as has probably not been looked after very well (but not always the case), check all the paperwork matches up vin No.' etc, if you are using the car daily, is your commute motorway, or town travel, as this will affect the mpg, check tyre wear, as another dear thing to buy for the cat, also condition of the wheels and exhaust, good luck with your purchase.