You are right to an extent but the fact as concluded by 309 is that most of us never get to drive our cars frequently in Islamabad only. This model of Civic is already stiff and without proper suspension to counter the effect of different factors such as roads, larger rims etc, I think things would go slightly odd. Although, as per the book, 17" should not ruin the suspension the way we all think. Driving carefully irrespective of the roads being good or bad is something we all ought to watch out for.