Someone on one of the 260 forums suggested that the bolts supporting the boot lid may be leaking on his car. I think a bit unlikely considering how tight they are but an easy precautionary fix with Captain Tolleys.
Leak Proofing – Boot Lid Bolts
information, news and reviews about the MG ZT and Rover 75 classic cars including the repairs, servicing and diy modifications I do on my own MG ZT SE
MG ZT info mods and maintenance 