I've always admired these since they are something a bit different and regret not getting one years ago. As a nice plus they are made here too. :-)
Hopefully it is just a temporary glitch with the website.
Sadly, its been over a month and their website has vanished for me.
Some scant design copies of their adverts remain, but the main website has cloudfare vanished. They must have been in Chichester , England at least until Feb , 2020.
https://www.agent8.co.uk/work/old-model-company/I hope they return some day as I was really liking their solenoid engine models, especially since their 2020 prices were On Sale and the deep discounts were attractive.
[There appears to be another small UK maker of solenoid motor kits, a shade more modern in design, but the prices look interesting HERE —->
https://extkits.co.uk/. ]
Enjoy a short farewell Youtube clip from The Old Model Company UK