Some downsides, though it also states at 60mph speed helped increase the air bubble and speech was fine:
>What about bugs? I asked. Will they be deflected too? “It depends on the mass of the bug,”
>What about stones thrown up by trucks?
>Overtalk…inaudible….
>In any event, McLaren expects all occupants will be wearing helmets on piste and will only engage the AAMS bareheaded at moderate speeds.