No low mileage is a bonus the lower the better like any car. But no theres no well renowned "common faults" with these cars that you should really worry about if you are buyin a non modified car then chances are more than likely the engine will be fairly healthy as toyota made these engines for years and they were pretty bullet proof when run standard. Obviously basic checks when viewing a car like how it runs, listen for knocks, check oil colour, smell the anti-freeze just generally check it over like you would any car. As I said though in a standard state it is a toyota which are obviously well known for being very reliable. I can honestly say ive had ALOT of cars most of which have been modern and extremely low mileage almost brand new and my glanza has always been my most reliable car.