Really cool, enjoyed the style of this game. Got into a good flow of traveling, earning stuff to sell, and min-maxing duders to be the most efficient.
I happened to run into a Metal Gear which took 20k+ of my fuel though, which stopped me in my tracks and was impossible to recover from, was that intentional? Kind of a bummer so far into my game!
Also I would recommend some way to automate the clicking process, such as a "sell all" type thing. Exhausting to do all the clicking on the road and then undo all that clicking with more clicking in the shop.
Other than that, great job! Also, interesting choice of picture for Rorie.