We need a horizontal "level" or pitch gauge

(you know, the thingy that tells ya if your going up/down hill on slant/level ground) in the Wirbles and Osti's.

Its very deceiving at times to tell how your vehicle is pitching.

I know the easiest way to tell is if you can't move forward in any gear but 1st, you're climbing and in Neutral, your haulin' tail means you going down hill.
A gauge would be nice.
Was this not historically accurate? Or was the omission of said gauge in said vehicles accidental?
