I think you could in UK before we left. I certainly could and did here with AXA. I was restricted to 8,000kms p.a. (5,000 Mls) every year on renewal,I used to email my (mileage) to ins agency, I’d do the conversion to kms also for them. The car was also given a Certificate of Cessation with the (mileage)recorded as kms on their form! I made sure AXA was aware of the difference because it could easily have been misconstrued. You have to watch this fact on every garage document your given because French paperwork says kms when they are recording actual mileage!
Fortunately in my complete from new car file, I kept all relevant for service or replacement parts paperwork, which were only necessary here, docs from uk and here so yes had a proven record from new to finish I’d done only 62,000+ miles from new over the 15+yrs I had it.
It was a RHD Clio and I found servicing cheaper here in a Renault dealership garage, where they also always had parts in stock. So there’s more to keeping a UK bought car here than we may always think about! It certainly all saved my bacon when I had the accident, although only 3rd party insured, I’d forgotten to change to fully Comp. I’m Not now sure how or why happened but It took 18 mths also before everything went to court, perhaps other driver was also held partly responsible because he admitted in his statement he hadn’t seen me, when it could be proved he should have. You know I battled and banged on about that for months and it paid off with an offer of compensation from my insurers. My recorded mileage and proof of annual conversion rates certainly disproved and confirmed at same time that all paperwork including CTA docs, were wrongly recorded showing a greater number of kilometers than I’d ever done, because they were miles! Too confusing now to remember all exactly, it was 2 years ago but I’m sure you get the gist of it all.