Comparing 8th and 9th gen Canadian Civic Sedans.
 

I have a Canadian 2003 Civic DX sedan and I'm looking at getting another civic. I am looking at the Sedans.

How do the 2006-2011 Civic Sedans compare for power, fuel economy, reliability and weight?

Is there a sweet spot year and model that has decent power, is quicker than other years and isn't too heavy and gets good fuel economy? Is there an Si sedan in this generation in Canada?