I am beginning to think you don't understand Elio Motors. The entire car is based in three main principles, 84 mpg, $6,800 list price, 5 star crash test.You can switch it that way, but usually increases in production costs often get pushed down to the consumers.
If we go with your example, lets say that the car actually has items that ring the car to $7500 instead of $6800....Do you really think Elio is going to eat that $700....nope.
Again, it all comes down to image. I believe one of Elio's demographics are college kids. I just graduated college and a significant majority of them are worried about looks......That's why they spend $60 on a hollister shirt when they could get about the same thing at JC Penny for $10. That is why you see many wearing "Beats by Dre" headphones. It is "cool" and makes them look cool (in their head). I AM NOT SAYING THIS IS RIGHT!.....but I know several of those kids would almost scoff at the idea of no reservoir.
Now lets say they do eat the $2 per car. I think they would be happy doing that if that meant they would several several more thousand cars. Think of when Netflix had to pay more in costs due to movie and tv rights (whatever you want to call it). They increased or planned on increasing their price quite a bit and got a backlash from it. They lost several customers over it and decided to eat some of the costs since they were going to lose more from the customers. There is a fine line on how much of the costs.
Lets say it is $8 as mentioned by someone.....that is a little over one tenth of one percent of 6800. You wouldn't notice that with any other item if it was pushed down to you.
I like any company that cuts costs, sometimes though the costs can be so little yet have horrible results. Again, if/when it is made, it will not have a water bottle type IMO.
Missing ANY of these three is unacceptable in Paul's mind because that is the entire backbone of their marketing campaign.
So your talk about passing the cost on to the consumer is irrelevant. It is irrelevant in this scenario because Elio MUST hit $6,800 list price end of story. And on top of that they need to have costs low enough to where the $6,800 per car not only covers cost but also makes them money. So no matter what anyone says, at the end of the day saving $2 per car is still $500,000 per year and that's significant. Saying they would be happy to eat $2 per car is preposterous and would show a complete sign of neglect and being unprepared and unorganized on Elio's part to allow $500,000 to slip out the door.
Finally let's not act like we know for a fact a reservoir that Paul says costs $8 could even cost $2 for quantity discount. I'm sure that was already included so the $500,000 per year is actually $4 million per year. More than enough in wasteful spending to force a company to shut their doors and American jobs and American products lost once again.
EDIT: additionally, if you think thousands of people from our generation (I'm 25) is that ignorant to pass up on this vehicle for the sole reason of a reservoir, we have a lot bigger issues to worry about because that shows we don't have the intellect to continue running businesses and the government as the generation before us exits the workforce. May God have mercy on us all if that is the case.