Flickr is a great source of images. Here is collection London to Mexico World Cup Rally 1970 photos.
The home of the Historic Marathon Rally Group. The Historic Marathon Rally Group (HMRG) is a friendly UK-based network of enthusiasts dedicated to reuniting historic rally cars, competitors, service crews, and supporters from around the world. Our mission is to celebrate and promote the legendary Marathon Rallies and Classic Car Endurance events of the past while fostering a shared passion for motorsport history.