[DeTomaso] Why 2 different styles of front L type bumpers?

[Kerry Maguire]

I noticed that some front L type bumpers are flush with the top of the fenders and another design sits approximately ½" to ¾" below the top of the fender line. Both style bumpers appear to be properly aligned along the crease lines of the fenders when you look at them from the side.

 

Does anybody know why there are (at least) 2 L front bumper styles? 

 

I have seen numerous pictures of cars with both styles of bumpers.

 

Regards,

 

Kerry M. Maguire