Track length: 5.245 m
Entries accepted: 33
Starters: 18
Finishers: 9
Pole position: Francia in 1.52,97 = 167,142 kmh
Fastest lap: Facetti in 1.57,9 = 160,153 kmh
Distance: 6 hours, stopped after 5:15 for heavy rain
Average speed: 137,523 kmh
Weather: Rain showers culminating in very heavy rain
Ruleset: Group 1-6/76

Sandro Cinotto, Giuseppe Piazzi i Stanislao Sterzel – Fiat X1/9 Dallara.

John Fitzpatrick, Manfred Schurti i Bob Wollek – Porsche 935.

Carlo Pietromarchi i Maurizio Micangeli – De Tomaso Pantera.

Giorgio Francia i Lella Lombardi – Osella BMW PA 6.

Carlo Pietromarchi i Maurizio Micangeli – De Tomaso Pantera.

After the 1978 season, it became clear that the World Championship could even sink further: in Mugello we had 18 starters, of which four sportscars. Half the 935 population was from Loos, who only came here for Porsche cup points and “to help Porsche”.
Old Facetti stole pole with his 1979 car, since Loos were switching to qualifying tires exactly on the moment the heavens opened for a short while.
Facetti and the rain helped the race to have a little excitement after all, Facetti only fell back after a collision while Wollek had the same wrong rain tires as he had in Zolder. But is was not really important anyway, when finally the track became flooded after just over 5 hours both Loos cars were in the lead, with Wollek having had a stint in both of them. The red flag stopped the race and that might have been the high point of the weekend anyway.

Weather: heavy rain

Distance: 6 hours
Entered: 33
Practiced:    20
Qualified:    20
Started:    18
Finished: 9
Classified: 9
Classes:    Pract    Start    Class
Group 6 - Sports +2000    1       
Group 6 - Sports 2000    5    4    2
Group 5    10    10    4
Group 4 - Grand Touring    4    4    3

Pre-race sessions:
2 qualifying sessions held
Winners:
Overall:    12    Porsche 935/77A    Fitzpatrick / Schurti / Wollek
Group 6 - Sports 2000:    26    Osella PA6 BMW    Francia / Lombardi
Group 4 - Grand Touring:    53    Porsche Carrera RSR    Pallavicini / Vanoli
Fastest Laps:
Overall:    3    Porsche 935    Carlo Facetti (I)    1:57.900    160.153 km/h   
Pole Positions:
Overall:    26    Osella PA6 BMW    Giorgio Francia (I)    1:52.970    167.142 km/h
Group 6 - Sports +2000    35    Lola T286 Ford    Zorzi    1:59.390   
Group 5    3    Porsche 935    Facetti / Finotto    1:56.590   
Group 4 - Grand Touring    61    Porsche Carrera RSR    Spavetti / Calderari    2:12.850   
Notes of interest:
Top makes by numbers:    Porsche (10), Osella (2), Chevron (2), BMW (2)
Top engines by numbers:    Porsche (10), BMW (4), Ford (2)
Top car types by numbers:    Porsche 935 (5), Porsche 934 (3), Porsche 911 Carrera RSR (2), BMW 320i (2), Chevron B36 (2)
Driver nationalities:    I (18), F (7), CH (5), D (3), S (3), B (2), FL (2)
Most used colours:    white (46%), red (30%), black (9%), orange (7%), blue (4%)
Engine positions:    rear-engined (55%), middle-engined (33%), front-engined (12%)
Oldest known drivers:    Carlo Facetti (44), "Gimax" (41), Ettore Bogani (37)
Youngest known drivers:    Enzo Calderari (27), Giorgio Francia (32), Georges Bourdillat (32)
Woman drivers:    Lella Lombardi

Klasyfikacja generalna.