You could create a list of vehicles and an integer attribute called Selection. Give each vehicle a number. When one is tapped change game.selection to that number.
Inside your character on the screen have a rule If game.selection =1 animate vehicle 1, otherwise if selection =2 animate vehicle 2, and so on.
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Inside your character on the screen have a rule If game.selection =1 animate vehicle 1, otherwise if selection =2 animate vehicle 2, and so on.