[Fran Hall RCR]

Now Arnie...
would that be with single mirror or double mirror.

Narrow body, mid size flares or Gulf body...

Mk1 or Mk2..if Mk2 would that be with or without snorkels.....

What about the Gurney flap on the rear.....or maybe even canards on the front....

Now what about the bigger core Mk2 rad. causing even more drag....

Dont forget the Gurney bubble

Oh and the single or double scoop nostril panel.....
and dont forget the Cd changes significantly when the figures are taken with the wheels rotating.....and the surface beneath the car moving also...

As you see there is no simple answer to your question....

Torque will get you there plain and simple.......and dont forget that the Mk2's AND 4's were 4 speed cars with a very long first gear...so there you have it....winkwink.

You could always buy a 40 and finish it out and then windtunnel test your config and decide on gear ratios after the build.....