Musclecar Showdown ~ 1968 Road Runner vs. 1964 GTO

How did the cars compare, weight-wise?
C

1968 Road Runner ~ 383/335 HP
* Coupe ...... #3424 lbs. ~ 10.22 Wt/HP
* Hardtop .... #3450 lbs. ~ 10.30 Wt/HP

1964 Pontiac Lemans/GTO ~ 389/325 HP
* Coupe ...... #3270 lbs. ~ 10.06 Wt/HP
* Hardtop ... #3289 lbs. ~ 10.12 Wt/HP