THURSDAY JULY  31 Little by little, we are leaving behind the lakes and forests of Ontario, to begin attacking the immense plains of Manitoba, where at regular intervals huge grain silos (called elevators) rise up from the surrounding expanse. It is here that we first see Canadian trains: 110 to 120 wagons, almost 1,500 metres long, and rolling at a steady 80 km/h . On the long straight sections of highway, we also perfect a technique that allows us to cruise at a an average of 110 km/h in our 2CV, by slipstreaming, or "drafting" behind transport trucks. The hardest part is to get right up behind these huge trucks without the "wall of air" shaking the 2CV like a bit of straw. Thanks to our CB radios, as soon as a truck came into view, we would plan our attack, and decide who would be where in the line up.  Wanting to stick together, there would always be three 2CVs hooked up behind a single truck. We really should add that truckers over here are as nice as in France, and willingly participated in this little game.  Since they all had CB radios too, we could chat with them, while giving them the "thumbs up" sign in their rearview mirrors.