The biggest problem with miles per gallon as advertised is that it is inaccurate. Having every vehicle be required to provide that information without having to buy a separate device should be required by law.
And every vehicle should keep track of the cost required for the gas added to it, and then both provide stats on gas usage in volume/day, mpg (or similar), and show an average of how much it is costing you per day to use it, perhaps pointing out things you are doing that waste gas, like you ran the air conditioner with the windows down, your tires are underinflated, you need a tune-up, etc.
The U.S. says it wants to curb unnecessary energy usage, but instead of making laws that would actually help its citizens in this regard, it wastes money refunding money spent on ridiculously overpriced cars and bails out auto companies that were destined to fail. There are good reasons why it does this, but it's crappy nonetheless.
And every vehicle should keep track of the cost required for the gas added to it, and then both provide stats on gas usage in volume/day, mpg (or similar), and show an average of how much it is costing you per day to use it, perhaps pointing out things you are doing that waste gas, like you ran the air conditioner with the windows down, your tires are underinflated, you need a tune-up, etc.
The U.S. says it wants to curb unnecessary energy usage, but instead of making laws that would actually help its citizens in this regard, it wastes money refunding money spent on ridiculously overpriced cars and bails out auto companies that were destined to fail. There are good reasons why it does this, but it's crappy nonetheless.