[Scene_Cast]

Hm, looks sweet! One gripe about super-realism - usually "fun" stems from unexpected game-play variations (and decreasing entropy). In Quake 3, it was the rocket jump. In sandbox games, it's, well, the sandbox. This is also why finding (physics) bugs is so fun. Here, however, I'm not sure if one will be able to do interesting things. Can you, for example, smash half the truck away and be left with a "bike"? Just random destruction seems like it will get old fast.

[Stwerp]

Minor Pedantic Point of Contention: Quake 1 had the rocket jump "discovery"; by Q3, it was an expected part of the gameplay. However, this does not affect your argument in any way.

[gnoupi]

In Q3, it was more the way jumping impacted your movement speed which was a discovery. Another example would be the Tribes series, with skiing which was also an abuse of the game physics (and taken as the main movement mechanic in the latest game, Tribes Ascend).

It's nice to see such parts of gameplay emerging from simple bugs. I would argue that it's much more rare nowadays, with games which aim to be always more realistic, and blocking your movement.