Biscuit Train

You are a train driver who's job is to deliver cargo to it's destination. Surprisingly, the train runs on biscuits, in your luck, your cargo is also biscuits, so you can feed the train more biscuits to get to the destination faster. Problem tho, the train in notorious for over heating and might explode when feeding it too much biscuits...

No worries tho, you can always spend your hard earned money to upgrade the trains reliability, speed, storage capacity and the quality of biscuits. But be careful, each upgrade also has it's own drawbacks, not to mention that you are renting the train and the longer you have the train the more the rent will be.

You will make cash by delivering huge amount of biscuits to it's destination as fast as possible.

Can you keep the engine under control or will get greedy?