There are bigger extinguishers that are "permanent," as in you need to run some piping to wherever you think the fire would be at (engine compartment), so that when you push a button or pull the pin in the trunk, it douses the flames.

Summit

Goin' Round Traffic Circles @ 50Km/h!!! \m/ -- 1998 E0 SVT #2119 of 6535 \m/ -- 2003 Sentra SE-R Spec V