Trade-off: extra cargo earns ×1.5 score but raises the centre of mass.
The science ▾
Longitudinal: m·dv/dt = Fdrive − mg sin θ − ½ρCdA v|v| − rolling resistance. Traction is clamped by μmg cos θ.
Cornering: yaw rate = v tan δ / wheelbase. Approximate lateral acceleration = v² tan δ / wheelbase.
Tip threshold: φcrit = atan(track / (2hCOM)). Cargo raises hCOM; this lowers the safe tilt angle.
Suspension: F = kx + c·dx/dt, visualized as four spring offsets. T = 2π√(m/k).
Fixed 120 Hz semi-implicit Euler integration; flat-plane traction with slope gravity. No full 3D collision impulses, tyre slip relaxation or structural deformation. The curves are educational estimates, not engineering certification.
W/S accelerate/reverse · A/D steer · Q/E shift cargo · arrows supported · gamepad optional. Click once to enable sound.