If you had a ten lb (5 kilo) duffel bag up in the front trunk, would the astute amateurs among us be able to notice the handling changes on the streets and highways? What about a 25 lb bag of stuff? A jam-packed 50 lbs up there; what would the noticeable differences be in street handling with these weights up front?

Just wondering..., maybe it is better to put the airport guest's luggage first in back seats and save trunk for last.