--- In exceldyno@yahoogroups.com, "Wes" <bajawes@...> wrote:

> Since any values you'd put in would be a guess, then it isn't really
> making the calculation any more accurate anyway....

My spreadsheet file partially accounts for flywheel and wheel inertia.
Engine and flywheel inertia subtly affect car acceleration expecially
in the first gears.

I agree it wouldn't be accurate to use average or estimated values,
but in my opinion it's better than not account them at all. In your
spreadsheet there is already estimated data for other things.