My "rule of thumb" for wiki creation is; if it will essentially read as a book with chapters and subchapters (some call hierarchical organization) . E.g.;
Car engines
Internal combustion
Gas
Diesel
Clean Diesel
Normal Diesel
Hydrogen
Electric
Pure
Hybrid
External combustion
Sterling (?)
Coal
Something else
Not sure if that would fit your requirements. I'd argue not, unless you plan to be adding content that naturally organizes as above. For more of my musings see the blog Sharing Knowledge Is Not That Hard - Wikis.
- Ludek