These were available for your BMC car in the '60s - Double or even Triple Jewelled Exhaust Deflectors. HYL443 is a Double Jewel and the 1800 is wearing a single jewelled reflector unit. Also with the demise of quarter windows, perspex weathershields were popular and I've still got one for my Major Elite with green perspex and clear which has now gone almost opaque with age. Sun visors have gone as well; I've seen them attached to things like an XJ6 which rather hamper the smooth lines of a Jag. The BMC Parts and Accessories reps had company cars which looked like Christmas trees with every available accessory bolted on.