Just made the phone call to Admiral, as the Cabrio was due to go on it in March after the previous policy expires...they wouldn't touch it, as it has to be like for like, eg, 2.0 8v auto to 2.0 8v auto,
So...I rang the current insurance up, they are going to insure it, for no extra charge, confirmed its 2.0 16v and a manual...they said yes that's fine, just a £25 admin charge!
Happy days!!