before you go to town making fun how stupid an idea this is (i admit its a little stupid) i think that in halo 4 there should be the option of giving human vehicles NOS, covenant vehicles all do but they all suck for racing with and it really sucks when you are on a really long straight away and you’re right behind someone but you just can’t catch up.
Sounds like a good idea since reach added the racing game type it seems to be the most popular thing to forge a map for overtaking the massive infection maps of halo 3. however the racing mode as good as it is is lacking a little something extra to push it up and over the top. a boost of speed would be one good way to increase its potential this could either come in the form of a nos boost as you suggest but it could also come from specific tiles you could place on the track itself (something that looks like a tread mill comes to mind). this would also alow for better customization of tracks as well as asethetic purposes such as when they were used in the first arbiter level of halo 2 to move explosive containers. if a moving walkway of some kind is placed in it could also be used in other game types (CTF for example). either way you could customize your tracks and maps for better mobility rather than just the cannon man launchers & gravlifts used now that can randomly have the racer spin and fly in almost any direction as well as no guarentee of safe landings this could begin to encompass new types of jumps and ramps that could be added to forge maps or pre loaded maps (especially if the player could control the speed of the moving walkway. at any rate it would liven up the racing game type as well as other maps if there was a boost option added to the game.