Rat wrote:I think an air speed indicator is a pretty silly idea since the only thing it is useful for is to tell you your power consumption, and there is already a gauge that does that. Even if you knew the air speed, that would only make a difference if it was high and steady in one direction, and you were driving a long distance in one direction more or less with or against the wind (not orthogonal), in which case you probably already know the prevailing wind direction. If you want one, though, have at it, but I would be astounded if Nissan puts one in. Having said that, it does make a difference in some cases, as I found out by personal experience. When my wife and I drove from the Bay Area to Santa Barbara down 101 a few years ago in her Acura TSX I kept a close eye on the mileage indicator and was able to keep it just over 30 MPG. Coming back in the same car, driving style (no rush), and route I couldn't. It stayed at about 28.5 max. The difference is that prevailing winds along the California coast come from the NW (tail wind going out, head wind coming back). For most of us most of the time, though, we are turning so often and the winds are shifting so often that it all averages out anyway.
It's just those type of highway cruise scenarios where maximizing range could be most important. Consider an EV will be more affected than an ICE, due to its inherent efficiency. ICE already wastes a lot of energy, so the impact of adverse winds is a smaller percentage of the total. See the charts presented elsewhere for range vs speed for EVs. ICE cars are influenced, but nowhere near to that degree.
Wind does not have to be direct in line of travel to have an influence. As a cyclist, I'm keenly aware of the difference that even a quartering wind can make. And I spent a week in May getting pushed southward by those wonderful coastal CA winds!
In terms of information, yes you do have power consumption, although from pictures of the display, the resolution of that information may be less than ideal. On the other hand, people tend to drive at a set speed. Knowing the nature of the wind influence would help to choose a better speed in a rational manner rather than reacting to increased power consumption whose cause (and therefore mitigation) may not be immediately apparent.
But the one thing I didn't think about is that, while planes are almost always traveling more or less directly into the relative wind, cars are not -- as you point out. What that means for my airspeed indicator fantasy is that the pitot tube would not be accurate for side winds.
Guess I can make due with a bit of string taped to the nose.