Major vibration at 90-120mph, New to Elise 111R ownership.

[Roundy]

Steering wheel is rattling around in my hand at speed above.

have checked nothing to be very honest, I suspect wheel balance on the front.

any other issues that are known please and thanks.

[ramjet]

I was always taught, car vibration = rear wheels. Steering wheel vibration = front wheels.

Wheels probably balanced at a lower speed which isn't showing up until you reach a higher rotational speed.

[augiedriver]

If this has only just started firstly check tyre pressures, if they're OK could be tracking or wheel balance.