New moke body style: open slab tub, no doors, exposed seats, windscreen,
rip-off det_roof canopy on posts, optional extra visual axles (physics stays
4-ray). New van style: cargo box from cab to tail with det_tailgate. Smoke
test ram made deterministic (re-aim loop instead of blind throttle).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
