Nope. No difference.
In places like Canada and Europe, they call it Honda Integra's instead of Honda Civic's.
And in U.S., they call it Acura Integra and Honda Civic. In the U.S., the design of the Civic's exterior/interior is different than the Acura Integra's exterior/interior. But they have the same engine and chassis and suspension. While in other countries and Canada, they are exactly the same inside and out.