4 ms·The real question is: Will it save more money in gas than it costs extra to buy?by Swizec 10y agoThe real question is: Will it save more money in gas than it costs extra to buy?VMG 10y agoThe rabbit hole goes deeper: how do you price in externalities like pollution for fuel? Or for an automatic transmission?VMG 10y agoThe rabbit hole goes deeper: how do you price in externalities like pollution for fuel? Or for an automatic transmission?