It was designated as a GL1500CT In 1999, the Interstate model was added to the lineup, which included a fork-mounted fairing along with a larger capacity fuel tank with 26 Liters (6.9 US gallons) and a trunk at the rear of the motorcycle.

Honda offered optional CB radio and fog lights mounted inside of the radiator pods.

To quote the project leader, Masanari Aoki,[3] "No performance goals, no distinct function, purchase price not a consideration.".

The production numbers are not confirmed, allegedly Honda made around 3,000 units and assigned one to each licensed dealership in the North America.

[3] Apparently the original idea was to collect consumer's feedback on the limited production Rune in preparation for an upcoming commercially viable model to be released in the coming year.

Based on the flat-six 1,832 cubic centimetres (111.8 cu in) engine from the Goldwing, the EVO6 produces more power than its touring ancestor.

[5] The reintroduced Valkyrie (NRX1800) shared the same liquid cooled 1832cc flat six engine (117 bhp at 5,500 rpm/123 lb.-ft. torque at 4,000 rpm) as well as underlying frame and 5-speed transmission as the Honda Goldwing.

At the Tokyo Motor Show, Honda revealed their new 'naked' version of the GL1800, as the 2014 Valkyrie, using the same 1832cc six-cylinder engine as the Gold Wing but weighing 70 kg (150 lb) less.