I want to build a 100-mpg car (and I want it to look vintage)

[sgtlethargic]

And that brings me back to this inspiration- an old dirt tracker that used early (round body) Falcon fenders:

[imwoody36]

and here is a link to more
https://daytonahybrids.com/streamliner-prius/

with a stock prius battery it gets 38 mpg,
with a 10kw pack it gets 40 miles EV.

Indiana had no problem with licensing it, florida said " put the turn signals and headlights in a different place" or fu*k off

[mannydantyla]

Originally Posted by imwoody36

with a stock prius battery it gets 38 mpg,
with a 10kw pack it gets 40 miles EV.

That's awesome!

Here's my '67 Volkswagen with a Miata inside. It only gets ~25 mpg though





I'm keeping my eyes peeled for a miata EV conversion for sale

[jakobnev]

I haven't settled on a body shape, or anything.

With a 30% efficient engine and 95% efficient drive train you basically have a straight line between a 2727kg car with zero drag area and a massless car with .485m² drag area to play with.

Allowed mass as a function of drag area: (kg and m²)

There is a LOT more power in Gasoline over Natural or Propane gasses.

What does it mean for fuel to have power, and what are the numbers?

[M_a_t_t]

Energy density might have been a better way for him to describe it. Fuel with more energy/volume means less is used to do the same amount of work. A good example would be gasoline vs ethanol. You get worse fuel economy on ethanol because it takes a larger volume of it to do the same amount of work as gasoline.

Not sure on the numbers

[sgtlethargic]

Originally Posted by jakobnev

With a 30% efficient engine and 95% efficient drive train you basically have a straight line between a 2727kg car with zero drag area and a massless car with .485m² drag area to play with.

Allowed mass as a function of drag area: (kg and m²)

What does the plot line represent?

[freebeard]

https://daytonahybrids.com/streamliner-prius/

That's pretty sweet, but the front facade and the mix of metal and fabric panels is... unfortunate. And putting the headlights under the fabric skin is a deal-killer in my estimation. Front turn signals aren't visible from the offside.

Your work? Ignore my opinion.

[jakobnev]

What does the plot line represent?

The line represents 100mpg.

If you have a car that weighs 1000kg then your max drag area is 0.306m².

If the car is small with a frontal area 1.5m², then your max Cd is 0.204.

[sgtlethargic]

Re 168: Cool, thanks. [gently]We were always required to label our charts.[/gently]

[freebeard]

[ en.wikipedia.org/wiki/Abscissa_and_ordinate ]