Mean radial velocity, 〈V_R〉 (top panel), and mean residual tangential velocity, $⟨V_{\varphi }-\overline{V_{\varphi }}⟩$ (bottom panel), asymmetry inside the G_LMC bar for the K4 (green lines) and K6 (yellow lines) simulations, as a function of time. The Gaia asymmetry is shown with horizontal purple lines. The horizontal black lines mark zero net velocity. The vertical dashed blue lines represent the pericentric passages between G_LMC–G_SMC. We only show data points after the bar formation (relative m = 2 Fourier amplitude Σ₂/Σ₀ > 0.2).