Most English and Welsh accents are “non-rhotic” meaning they don’t pronounce "r"s and would pronounce “Mars” as “mahs”.

I’m from Ireland which does have rhotic accents, along with Scotland. I’m mostly used to hearing the English accents but occasionally it does lead to fun misunderstandings like hearing “carving” as “calving”.

Eugh, yeah. Sainsbury’s have recently changed their caramelized onion chutney to a “new, improved recipe” in a jar about 2/3 the size of the old one and costing quite a bit more.