Is the Britax Frontier 85 to big?

We currently have a Britax parkway. It is a nice car seat but I really want to go back to the 5 point harness system. My only problem is that I have a small car, a Chevy Cruze. From what I have read the Frontier is rather large. Does anyone have a Frontier in a smaller car and it fit fine? Just don't want to order it, and then it not fit at all and be unsafe. Thank you!