not even close, the tsx is almost a direct copy of the honda accord that was released overseas, it is in no way shape or form a 4 door integra replacement, it may have filled the gap of acura not having a 4cyl 4 door, but its not a replacement of the integra by no means, its a completley different vehicle based off of the accord

the accord euro r
http://www.honda.co.jp/ACCORDEURO-R/

the regular accord from honda japans website