PORSCHE RACING HISTORY1978 - Mugello 6 Hours
19 March 1978 - Autodromo del Mugello, Italy
Toine Hezemans, Hans Heyer & John Fitzpatrick win in a Porsche 935/77A
Overall - 1st, 2nd : Gr.5 - 1st, 2nd : GT - 2nd, 3rd
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 12 | Porsche 935/77A | 930 890 0015 | Gr.5 | Toine Hezemans (NL)/Hans Heyer (D)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 1st | 1st | 2nd | 176 laps |
| 15 | Porsche 935/77A | 930 890 0014 | Gr.5 | Franz Konrad (A)/Reinhold Jöst (D)/Volkert Merl (D) | Konrad Racing (D) | 2nd | 2nd | 4th | 175 laps |
| 22 | Porsche 935 | 930 770 0904 | Gr.5 | Claude Haldi (CH)/Herbert Müller (CH) | Meccarillos Racing (CH) | 4th | 4th | 14th | 174 laps |
| 3 | Porsche 935 | 930 770 0902 | Gr.5 | Martino Finotto (I)/Carlo Facetti (I) | Jolly Club (I) | 5th | 5th | 6th | 174 laps |
| 8 | Porsche 935 K2 | 007 00016 | Gr.5 | Dieter Schornstein (D)/"John Winter" Louis Krages (D)/Bob Wollek (F) | Porsche Kremer Racing (D) | 7th | 7th | 8th | 169 laps |
| 11 | Porsche 935/77A | 930 890 0011 | Gr.5 | John Fitzpatrick (GB)/Klaus Ludwig (D)/Toine Hezemans (NL) | Gelo Racing Team (D) | 9th | 9th | 1st | 157 laps |
| 27 | Porsche 934 | 930 670 0168 | GT | Edgar Dören (D)/Gerhard Holup (D) | Max Moritz (D) | 12th | 2nd | 19th | 154 laps |
| 25 | Porsche 934 | 930 770 0956 | GT | " Dino" (I)/Romeo Camathias (CH)/Francesco Pacetta (I) | "Dino" (I) | 13th | 3rd | 18th | 153 laps |
| 42 | Porsche 934 | 930 670 0160 | GT | Franz Gschwender (D)/Hans Forster (D) | Hans Forster (D) | 14th | 4th | 17th | 152 laps |
| 16 | Porsche 935 | 930 770 0912 | Gr.5 | Claude Ballot-Léna (F)/Jean-Louis Lafosse (F) | ASA Cachia (F) | 15th | 11th | 13th | 141 laps |
| 29 | Porsche 935 | 930 670 0540 | Gr.5 | Klaus Drees (D)/Wolfgang Kauwertz (D) | Klaus Drees (D) | 16th | 12th | 25th | 133 laps |
| 7 | Porsche 935 | 930 770 0911 | Gr.5 | Mario Casoni (I)/Corrado Manfredini (I) | Sportwagen (I) | 17th | 13th | 15th | 133 laps |
| 26 | Porsche 935 | 930 770 0906 | Gr.5 | Piero Monticone (I)/"Victor" Vittorio Coggiola (I) | "Victor" (I) | DNF | 20th | ||
| 14 | Porsche 911 Carrera RSR | GT | Preben Kristoffersen (DK)/Eberhard Sindel (D) | Wrangler Racing (DK) | DNF | 21st | |||
| 5 | Porsche 934 | 930 670 0169 | GT | Michele di Gioia (I)/Girolama Capra (I) | Jolly Club (I) | DNF | 22nd | ||
| 18 | Porsche 934 | 930 670 0162 | GT | Angelo Pallavicini (CH)/Peter Bernhard (CH) | Angelo Pallavicini (CH) | DNF | 24th | Gearbox | |
| 19 | Porsche 935 | Gr.5 | Carlo Rebai (I)/Anna Cambiaghi (I) | Carlo Rebai | DNF | 27th | |||
| 9 | Porsche 935/77A | 930 890 0022 | Gr.5 | Bob Wollek (F)/Henri Pescarolo (F) | Porsche Kremer Racing (D) | DNF | 3rd | 32 laps - Piston |
World Championship for Makes
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