Acura CSX

Sold between 2005 and 2011, the Canada-only Acura CSX was a restyled version of the locally made Honda Civic. The different face and tail was used on the Civic sold in the rest of the world.

What do the letters CSX mean?

It hasn't been officially confirmed, but given past Acura names, the CSX could be short of Compact Sports eXperimental.