Honda city Idsi 2006-2008 models are exactly same. They have the same engine(L12) same mechanical parts etc.
The 2006 idsi Honda city had a little pinkish shade in reverse light while 2007 and 2008 models had clear white reverse light
Honda Also offered a V-TEC Steermatic 1500 cc (L15 Engine) car and it was more powerful only offered in automatic/Steermatic transmission . It had 15 inch alloys,different cluster,fabric, buttons on steering wheel and a exhaust tip.