The UK issued silver dollars once. They were dated 1804 and considered “bank tokens” as they had less silver than their denomination required at the time. They basically stamped a new design on Spanish colonial 8-real coins and passed them as five shillings.
The UK had a hard time with coin supply for most of the 1700s until 1816 when they finally downdized many coins.
Read the headline as “flips off car” and was pleased to see they hit a new milestone in mimicking human drivers.