Hmm, Ok, I may have to reveal some more info about myself and my travels…
You see, it’s not quite as simple as “booms” the part of “booms” that make things move, including the pistons in a car engine are changes in air pressure. That and some spells created by the ArchDemon Newton.
For example the little explosions in a piston create extremely high pressure inside the cylinder which pushed the cylinder down. The pistion is on a funky rod connected to other pistons, so when one goes down, another goes up, and then the explosions are timed sort of like foot action on a bike peddle, so they explode alternatively and this drives the car, so it’s high pressure plus low pressure repeated over and over.
To really get super powered carpets you would need someone really good with both pyromancy and aeromancy (Encanter)
Basically pyromancer creating the boom, Enchanter funneling/channeling the force. Clearly this would have to be a device as it would be very tricky to do adhoc as a set of spells.
But to get to the point of aerodynamics, the Enchanter can guide the airflow over the top of the carpet, and in fact, they have to or it would get really windy for the occupants. Enchanters tend to be very good with “air shields” or air force walls if you will. So in reality there is also a focewall bubble that you can’t see on the top of the carpet, protecting the passengers. For slow carpets it’s not that strong, but for racing carpets they put a lot of power into it, and create an aerodynamic roof.
Gunpowder is alchemy, a very iffy science at best. Typically you want a Thaumaturge working with you to keep from blowing yourself up.
And not to defend pyromancers, being evil wizards after all….but not all pyromancers go boom. There are electromancers which are a specialization of pyromancy focusing on electricity…a lot of these guys do work with sending electricity down wires and making devices that use it. But again, this works best with help from a thaumaturge who can find these weird rocks that interact with electricity and attract metal to themselves.