Titles   Engine            Nat.

16       Ferrari           ITA*
-------------------------------
12       Mercedes-Benz     GER*
         Renault           FRA*
-------------------------------
9        Ford              GBR
-------------------------------
6        Honda             JPN
-------------------------------
4        Climax            GBR
-------------------------------
2        Repco             AUS
         TAG-Porsche       GER
-------------------------------
1        BRM               GBR
         Honda RBPT        JPN*
         RBPT              AUT
         Vanwall           GBR

* = Active engines