Just because they slapped a fancy bodykit on it and bumped the price still doesn’t mean its on the same playing field. I agree if we had a 'R" version of the civic then maybe. But the mugen edition (aero parts aside) is along the same lines as the HFP civics, just a better suspension/wheel setup. I heard Honda was doing the mugen edition as a test to see how it sold. Then they would consider other special models, so who knows.
Speaking of the Mugen Edition civic, Vtec.net just did a test drive at Mid-Ohio and they seemed to like it. Though they didn’t have a regular Si 4 door to compare against.
Temple of VTEC Rumors and News - First Drive! 2008 Honda Civic Mugen Si at Mid-Ohio