Here is a cleanup of the drag/power table for the 1996 HONDA Dream WSC winner.
The blue area is Rolling-Resistance
The yellow,aerodynamic
At 99.419 mph,the car requires only 5.862 kW (7.861 hp)
If you give it the powertrain mechanical efficiency of a 1962 pickup truck and the BSFC of a Chevy V-8,your looking at 188 mpg @ 99 mph.
This is the game you're entering into.