Flags
C5 logo on a C3, I think it's just a matter of taste.
I too like the look of the new flags, but personally wouldn't use them on the outside of the car, ALTHOUGH........
I did use a C5, 3D Waterfall emblem in the inside. I placed it between the rear speakers on the box I built, and it looks good.
As for any other logo's, I placed even older ones, C2's on the chrome valve covers I just installed.
I even used side chrome emblems from a 61 to place on the back of the seats near the top.
Cross flags are cross flags, they all look cool.
I also plan on painting (yes, myself) a set of cross flags on the underside of the hood, with a shark in front of them this summer.
The flags I have in my head, don't match ANY of Chevy's either.
So, with all that in mind, you can now tell, I'll NEVER win any trophy's for stock, but originality, maybe some day.
I think it's O.K. to update the interior anyway you want it, let's face it, from todays standards the C3 interior needs facelift anyway.
If your trying to stay stock, then NO WAY use them, if not...
what the hell.