You shud know that 100kph on speedo is not exact 100kph 2ndly 7.2sec is not possible after Honda update and especially with our hobc fuel. So I would suggest u to stop doing stop watch timing coz those are not accurate better invest on gps vbox for accurate timing. Also don't compare our timing with US cars timings as they got better fuel & road, best is to check with Asian countries like Thailand or Malaysia.