Tesla: ISO lateral limits

[sshane]

Right now, without vehicle model's curvature factor that assumes we get less curvature than expected at higher speeds, we get 60% less lateral accel than we could at 80 m/s. This graph converts 3 m/s^2 accel to curvature without curvature factor, then uses the vehicle model to convert to lateral accel again with curvature factor: