The 1957 1000 km Buenos Aires took place on 20 January, on the Circuito de la Costanera Norte, for this event, was moved from its previous venue, the Autódromo Municipal-Avenida Paz, a 45,000 capacity motor racing circuit in Buenos Aires, Argentina built in which year?
1957 1000 km Buenos Aires The 1957 1000 km Buenos Aires took place on 20 January, on the Circuito de la Costanera Norte, (Buenos Aires, Argentina). It was the fourth running of the race, and once again, it was opening round of the F.I.A. World Sports Car Championship. For this event, was moved from its previous venue, the Autódromo Municipal-Avenida Paz, only to return to the Autódromo in 1958.
1970 1000km of Monza The 1970 1000 km of Monza was an endurance race held at the Autodromo Nazionale Monza, Monza, Italy on April 25, 1970. It was the fourth round of the 1970 International Championship for Makes. This was the first official 1000 km race at Monza that used only the road course; in 1956 and 1965-1969 the organizers utilized the combined road and banking courses; but the banking was abandoned because of safety issues; the 1969 1000 km race was the last race ever held on the concrete-surfaced banking. Mexican driver Pedro Rodríguez won this race in John Wyer's Gulf-sponsored Porsche 917K, he was able to hold off 3 hard-charging works Ferrari 512's after his co-driver Leo Kinnunen lost most of the lead Rodríguez had built up. Ex-Ferrari driver John Surtees returned to Ferrari after 4 years to drive a works 512.