system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU or Earth-616] Would it be possible to make a much cheaper, less powerful version of the arc reactor for civilian cars?

Could Stark make a very cheap arc reactor that's just powerful enough to run a Prius or Tesla Model S? Would it be cheap enough to be considered cost efficient?
gpt
Don't your recall?  He made his first one on the cheap "in a cave... with a box of scraps".  It powered his Iron Man suit with boosters, thrusters, repulsors, weapons and a complex AI operating system and electronic console.

Surely to God, it could power a simple automobile.