With such an opportunity to spend btc to buy luxury cars-
*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?
No, Bitcoin is my investment and I definitely don’t want to exchange it to a liability such as car that depreciates value over time. Exchanging fiat to Bitcoin will charge tons fee considering the amount involved is equals car value.
I’d rather use fiat or car loan to pay it slowly instead of liquidating my Bitcoin investments just to purchase car. This payment method is interesting if they can provide discounts exclusive for Bitcoin payment. With this benefits, I might spend my Bitcoin but in terms basis not one-time payment because I value my Bitcoin investments.