# 12 Of The Most Complicated Engines Ever Made

> Since the first internal combustion engine fired up in the 19th century, engineers have been trying to push its limits.

- **Source:** [SlashGear](https://www.slashgear.com/1982387/most-complicated-engines-ever-made/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=68dd7573176860d500db4c44)
- **Published:** 2025-10-01
- **Category:** Cars
- **Tags:** #complicated #engine #ever #around #break #carburetors #century #combustion
- **Canonical:** http://localhost:4321/a/68dd7573176860d500db4c44

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._