My buddy had a 1965-ish Sunbeam Imp (Mini Cooper sized car) that Chrysler was importing to the US from England. They even put the pentastar emblem on the lower RH fender on those!
Chrysler acquired the Rootes Group (Sunbeam, Hillman, Humber) in 1966. After that, all Rootes Group vehicles had the Pentastar on the lower right front fender. And yes, that even includes the Sunbeam Tiger with the Ford 260/289 engine under the hood. The Tiger was discontinued after the 1967 model year because Chrysler didn't want to invest in tooling up a new design for the Tiger/Alpine convertible. The intent was to design a new Tiger around the new for 68 340 motor. The existing Tiger platform didn't allow room for the Chrysler small blocks as the distributor location at the back of the engine wouldn't clear the firewall. Clearly, it was a bit of an embarrassment for Chrysler to sell (and service and provide warranty for) cars that had a competitor's engine under the hood. The Alpine convertible continued into 68 with it's British built 4 cylinder engine. The Humber (a 4 door luxury sedan and wagon for the British market) was replaced in the U.K. with the Australian Valiant sedan and wagon which were assembled at the Rootes factory. A body Barracuda convertibles hardtops and fastbacks were also assembled at the Rootes factory using right hand drive components (including the dash) borrowed from the Australian Valiants. Despite the right hand drive, the Pentastar remained on the lower right hand fender on all products.
Sunbeam/Hillman Imps, a Sunbeam Arrow 4 door sedan and wagon and a fastback coupe (based on the Arrow sedan platform) badged as an Alpine, were sold through Chrysler Plymouth dealers in the U.S. up until the very early 70s'. By 71 the Plymouth Cricket (Hillman Avenger in the UK) replaced the Sunbeam line in the US. The Cricket (4 door sedan and wagon) was a disaster compared to the the Japanese Dodge Colt which also appeared in the US in 71. Crickets were very unreliable. I remember a neighbor of my parents bought a petty blue 73 Cricket. It left their driveway more often on the back of a tow truck than under its own power. Within six months the neighbors traded it in on a new Ford. The Cricket was discontinued after 73 and Chrysler made no further efforts to import any British built (Rootes Group) cars to the US. I do believe a 2 door coupe version of the Hillman Avenger/Plymouth Cricket was sold in Brazil for several years badged as a Dodge Polara.
