Welcome to the source of all 260 knowledge! I can't answer your question from personal experience, but I know there is a lot of information about them and members own experiences in various posts on the forum. Lots of info here, but to get to all of it you will need to be a full member. Very easy; just send a message to Tim and ask for a questionnaire to fill in.
What is the VIN of your new car, incidentally (last 3 digits)?
Happy New year. Looks like you've set off in the right way!
Welcome along Richard. As David says there is a lot of information available to full members of the forum. If you get your questionnaire back to Tim and go 'green' then all will be revealed.
Nich.
Nicholas John Peter Tinker - # 484
Manufactured on Tuesday 27th April 2004 @ 12.17.47.
Commission Number: 24468.
Brochure Model: M3 Tourer 4.6 V8 260PS.
Specification Code: L01B.
CICode: D1511.
Trim Level: TL8.9 (M3).
65th ZT-T 260SE to be made out of 115.
11th ZT-T 260 SE in Pearl Black (PBT) out of 23 produced. Manufactured in the UK by MG Rover Group Ltd.