The flywheel is the same for a 1.8 as a 1.8 turbo, only the clutch plate is different. It is no longer available new from MG Rover. You can of course by an aftermarket one, I believe.
We have an alternative of a good low mileage second hand one, and also if your car is a 1.8 we can supply a recon clutch plate
Are you outside the UK.
you can email for further information at
[email protected]