*Will you be willing to spend your btc to buy car from Honda? Or any other automobile company that will follow the Honda's part?
If it is more convenient, wise, or cheaper to use on buying a car than cash, why not?
*Which other automobile company would you want to also accept btc for payment?
All the automobile companies would be great.
*Is this news big enough to trigger market uptrend in the coming weeks, months?
It's not big enough since some companies have not yet accepted it, though it's excellent news since we can accumulate more Bitcoin and Ethereum before the market uptrend.