The fuel-tank on the Smart is only ca. 15L and gets you about 350kms further down the road. Now I know that some cars are sold on the basis of being able to go long distances between fuelling stops but think about it. You stop and fill up with fuel and coffee and hit the road. There's now an inverse relationship between fuel-tank and bladder volume; the further you travel the emptier the tank and the fuller the bladder. After about three hours both need attention so you might as well stop. Who needs a 70L fuel tank? The human body can't possibly drive that long!
It took about 14 hrs to get to Magog; 12 hours on the road and two hours of stops. At least the Pig enjoyed it.
We used the car Garmin because as good type-A triathletes we know that if a run/bike/road-trip isn't on the Garmin then it never happened. Of course, waking up on Thursday morning in a totally French environment was pretty good evidence that I had in fact travelled 1200kms by car the day before but I clearly needed the Garmin to validate the reality in front of my own eyes (and ears).