While 'abroad' last night on a 'private test track' I thought I'd stretch it's legs. I fully expected it to hit the restrictor at 155. Couldn't believe it when it sailed straight past and on to 170. I chickend out after that as other cars on the 'race track' were rapidly being caught

I bought it as an ex-demo and there was no mention of it being deristricted. Is there any visual way to tell it has been derestricted other than the obvious speedo reading? My road angel confirmed the speedo wasn't faulty?