Don't know for sure but try this as I'm a Plus 8 man but that level of general rust looks pretty advanced imho.
Loads of Roadster owners on here so someone will pop up in a minute.

My 23 year old car doesn't have a trace of it but had only covered 18,000 miles when I got it and now she is up to 37,000 miles used all year round by me for 8 years but never on salted roads.

So I'm thinking yours must be an all weather high miler.

[Linked Image]

Last edited by +8Rich; 17/06/22 10:52 PM. Reason: + image clutch master
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev