Nothing at all. I just bought it yesterday.
It's smoother then a Lexus 6 cylinder. But it is not as powerful. I realize that it felt like a bargain price.
I love the car and recommend the car to anyone that's looking for a car that is smooth, cheap and reliable.
The Epica is a nice looking car, but I agree it does need more power, and GM should supply one of their engines in it. The new 2.4L ECOTEC that's coming out would be a good choice as it has 170 HP. Otherwise I think it's a nice car and very affordable, enjoy yours.