Yeah most likely but I totally missed the sarcasm this morning. I hadn't had coffee yet and I read that and was like wtf? There definitely needs to be a sarcasm icon.
I'm not 100% on how the 355 and 348 systems work, but both my cars show high on the speedos, but I've had them on 700 mile round trip journeys and the odometers recorded the correct mileage regardless of what the speedos say.
Ended up looking at this car in person and declined to make an offer. If anyone wants my humble opinion on this car or info on it before going to see it (for sale in Tampa Fl). just PM me.