Homebrew Artificer: Mechanic/Grease Monkey

Okay so I’ve been throwing this idea around and would love some input. Basically a 5e artificer subclass that gives you a motorbike or vehicle. Think similarities of a fighter cavalier or a paladin with find steed, with the ability to upgrade your vehicle over time. Where do I even start with this? Haha

Hmm maybe you should start in Emberron ;) as that would not fit at all in Greyhawk or Forgotten Realms settings

I did a gnome artificer, battle smith, who rode her steel defender as a mount and gave it horseshoes of speed. But the game never really got started :/