Pricing and Trims: What Options Should You Choose for Your CT4?

I'm considering purchasing a new CT4 and I'm trying to decide on the right trim level and options. The Luxury trim seems like a good value, but I'm also intrigued by the Sport model. What are your experiences with these trims? Which options did you choose and why? Should I stick with the standard 2.0L turbo or upgrade to the V6?