other hand, did not race its big and powerful Porsche 917, but rather the smaller and nimble Porsche 908/03 Spyders. Due to safety concerns, especially by Helmut Marko, who called the race "totally insane", the last Targa Florio as a World Sportscar Championship race was run in 1973; when it had become impossible to retain its international status after a number of accidents, two of which were fatal; one which privateer Charles Blyth crashed his Lancia Fulvia HF into a trailer at the end of the Buonfornello straight and was killed; and another where an Italian driver crashed his Alpine-Renault into a group of spectators, killing one. There were several other accidents during practice for the 1973 event in which a total of seven spectators sustained injuries. The event was won by a Porsche 911 Carrera RSR as the prototypes such as Jacky Ickx's Ferrari suffered crashes or other troubles. The Targa's international demise was compounded because of widespread concern about the organizers' ability to properly maintain the race on such a massive circuit, and there were not enough marshals - most spectators sat too close to the roads; and also the international automotive governing body, the FIA, mandated safety walls on all circuits that were going to hold FIA-mandated events from 1974 onwards, and the length of combined public roads made this simply impossible and totally impracticable, especially from a financial standpoint: the sport's growing professionalism was something the Targa's organizers simply could not keep up with. One example of this concern was when Briton Brian Redman crashed his Porsche 908/03 during the 1971 event 20 miles into the first lap. The steering on his car broke, and it hit a stone wall and caught fire. Redman had second-degree burns all over his body and it took 45 minutes for any medical help to reach Redman (while he was attended to by spectators who were trying to keep him cool by waving objects). The Porsche team did not know where he was for 12 hours until teammates Pedro Rodriguez and Richard Attwood found him in a local clinic. The Targa was continued as a national event for some years, before a crash in 1977 where hillclimbing specialist Gabriele Ciuti went off the road and crashed at the fast curves at the end of the Buonfornello straight after some of the bodywork flew off his BMW-powered Osella prototype. This accident