Don't know how many members there are of this club now, but how about starting something like.....
"Lexus Club Together Scheme"
.....Whereby if a member has a major problem, those other members who'd like to, or felt sorry for them, could contribute, say £2, towards getting that major problem fixed. If there were 500 members who wanted to contribute, my GCSE maths says that would be £1000 crisp ones to help get that Lex back on the road.
Then, provided you had contributed to someone else's woe, if your own Lex should knacker up, you would be eligable for receiving help from other members too.
Obviously some kind of vetting would be required incase someone decided they'd like a new set of 18" alloys and deliberately went round kerbing them and you'd have to stop people making minor claims for things like punctures or windscreen washer fluid running out, but I think that on the whole Lexus drivers are an honest lot and would not milk the system.
Good idea or have I had too much beer to drink tonight?