Just got myself a Sentra 2.0S. I'm very happy so far. It's the first new car I buy and I was presented with many options I'm not very familiar with. What do you guys think about getting an extended warranty. It would cost me an extra C$900 to add a 4th year to my warranty. Adding this would also give me the option to add a few more years (a 5th and 6th) later on at a very reasonable price. So, do you think a 4th year is worth C$900. Thank you.