I have a 2015 Corolla LE with a 1.8L 4cyl engine. It is an order of magnitude louder than my 2003 Corolla when accelerating. I drive with a lead foot, and maybe the "average person" wouldn't have my same complaint. But it really bothers me. It sounds cheap and annoying. I'm pretty sure there is nothing "wrong" with the car, that this is how the car was designed. Unfortunately I didn't notice when I was test driving, because I was too polite to floor it when the salesman was sitting in the car. That is the last time I don't floor it on a test drive. How can I find out where the noise comes from exactly, and what can I do about it? It sounds like a munchkin jackhammer. Also, this car has a CVT, but it is acting like it has gears, which seems to defeat the whole purpose of having a CVT. What can I do about that?