(quick side-note, neither of these are serious "OMG UR SO DUMB!" arguments - more like random musing. Though, the first argument has very practical applications)
Argument 1 :
I read this article
stating that peak fuel efficiency is at 55-60MPH - and that you lose 5-7% efficiency per 5MPH over that. Using cruise control, obviously, increases that even more. My current car won't let me use CC above 90MPH.
But, my argument (really more of a question) is that if I drove my car from, say, LA to Phoenix (375 Miles, est) at 90MPH vs 60MPH, I'd ultimately help the environment because I'd be on the road for about an hour and 40 mins less time.
Does that make up for decrease in fuel efficiency, or no?
Argument 2 :
I was laughing at the MPG estimates on the Bugatti Veyron
- which are 6MPG city and 10MPG highway. Going it's top speed, it would run out of fuel in just under 13 minutes. Of course, one would have traveled roughly 55 miles.
This lead to me saying "that means my piddly 6-speed 2.5L Altima could probably take a Bugatti Veyron on a race to Phoenix from LA" to my friend, who's got a hard-on for that Bugatti.
The best math I had to support it (and I suck at math) is this :
LA to Phoenix = 375 miles.
Bugatti Veyron @ 253 MPH = 1.5 hours
Nissan Altima @ 140 MPG = 2.6 hours.
Bugatti makes 7 stops for gas = add about 70 mins
Altima makes (maybe) 1 stop for gas = add about 10 mins.
Bugatti = 2.7 hours
Altima = 2.65 hours
This, obviously, assumes both cars could actually go their top speed the whole way. While the road is mostly straightaways (and let's suppose cops weren't a factor in this theoretical race), I still think one would have a much harder time maintaining 253MPH vs 140MPH.
My friend figures the Bugatti would win, hands-down, regardless.
So - which one would win?