I would like to report a bug: I paused the battle to take a look at what the cards do, after closing the pop-up the game went back to its play state, so I had to pause again to look at the next card.
Really good game. I like how the auto-battle is a viable option here. I also think there should be distinguishing features on melee and ranged characters. They're pretty much the same. What you look for in a character are its skills, base stats, and rarity (stars). The unit type (melee or ranged) is completely overlooked, and that's a game design mistake.
This is how I got 6000 ft.: from the start, set your resistance to 4%. Speed up to 175 mph, when it falls back to 150 bring it to 175 again. Repeat until you run out of fuel. When you do, set the resistance to 3% and you're done. I could've gotten 7000 ft. if the game didn't automatically finish when you reach the final goal.
Creative concept, however poorly executed. The game repeats itself throughout the dozens of levels and the difficulty never scales up, being a boringly easy game from start to finish.
ok, will look into it!