I like the car analogy, and I had additions to it with software-components in mind: engine-choices representing data storage: very big engines. for big ships

I like the car analogy, and I had additions to it with software-components in mind: engine-choices representing data storage: very big engines. for big ships. very small ones, for lawnmower. self-made ones, smoking. gear-choices representing libraries: single gear gear from 1 to 1000. No neutral and no reverse. chassis choices (language choice): rusty old ones, hard to work with, but lasts. new shiny ones, overpriced and falls apart. locks = safety: one key fits all (all doors and all cars). different key for each lock, can be bypassed by opening window. keypad with password, written on the back-side of the car. interior = user interface: millions of choices, all flashy and shiny, each part looks totally different. Unusable steering. break (software stability): no breaks. when used causes blue-screen outside (program output): all parts have different sizes. holes covered with duck-tape and rust covered with shiny paint. Enjoy the ride!