[djmips]

The race car analogy can be extended in that UE4 doesn't even give you a competitive F1 car but it's marketed as such. AAA companies outside of Epic using UE4 have spent a kings ransom on customizations to tailor it for console. Much like top F1 teams just getting an engine doesn't put you out front without a bunch more work. Nevertheless, this is only a problem if you think you can take UE4 and a small team and make a AAA game that's pushing lots of polys on older consoles at high fps without extra work.

[danbolt]

I'm a little surprised you're being downvoted. There might be a bit of hyperbole in your words, but no game engine is entirely off-the-shelf per-game. Or, idiomatic code suited to an engine always requires a bit of elbow grease to be ready for shipping.

[djmips]

I'm being downvoted, likely, by people with little experience in this particular area I guess... There is a real actual gulf between a fully tuned AAA game engine and what you can buy.