Joining rather late (as usual) in the discussion about Reliants (known popularly as Plastic Pigs)
Believe me, there is a US connection! The engine that powered these was derived from the Austin engine that was also used to power the pre-war Pennsylvanian Bantam.
!Web Site devoted to the Bantam).
They enjoy a fanatic devotion from owners.
Just been to a Wedding where two were used to bring the Groom, best man & about five others (all crammed in the back!) to the Church. I had to follow these and was amazed at the way they climbed hills!
Their main fault was a tendency to catch fire. Another friend related how her husband smelt burning, stopped the car, calmly got her and the children out and they all stood by the roadside and watched it burn to a frazzle!