Mini 'rover' door sill repair panel, Left hand side
MS16L- DOOR STEP SHAPED PANEL MK3 LH
These door step panels actually have the start of the curves at the end where they are able to rust. This is the Left hand side, see MS16R for right hand. You can cut the straight sections out to use as repair sections on sliding window/Australian windup window type door frames MK1/2 as the profile is the same.