Hi all, I’m a non MX5 owner, thinking seriously of taking the plunge.
Having said that - I have just read some of the 29 pages about chasis rail rot!
My wishlist is :
a Mk2 or 2.5 in a dark blue, racing green or black preferably.
I like the sound of a 6 speed box ( or is this a mistake? )
I was looking for one that has never had a mention of rust on the MOT history, but after much searching may have to drop that wish!
I found a very nice & reasonably priced 2.5 with no history of rust, but it’s in that very ‘lively’ met blue & I’m not sure I can live with that 
The main question is - where are the main rust places. But having seen the chasis rail thread, it seems that is a tricky job without removing wheels, undertrays etc? And I also gather the sills rot from the inside out, so once the rust appears, it’s too late??
the car I’m planning to look at next has this as an advisory in 2016 : "Offside Front Suspension component mounting prescribed area is corroded but not considered excessive (2.4.A.3) "
and this as a fail in 2018 ( which must have been since fixed ) : "Offside Front Seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i)) "
… but otherwise looks in good condition ( from the description & photos ) and 50K miles / 6 speed / bark blue / leather etc.
Is there a ‘mobile expert’ who would examine the car for a fee ( near Guildford ) ?
So many questions - thanks in advance!