
There's no evidence that it's been repainted from black and no evidence in the receipts of a swap and believe me my history is comprehensive!!

According to the production record that I have seen and my heritage certificate, she was built on the 13th August 1980. The plant shut down on the 26th August 1980 so she was built less than two weeks before then end of production. So it's not a surprise that it's actually a TR7 cover on a dolomite back plate! Like Jonners said, you got what you got that late in production.
I'm happy it's supposed to be grey, I just want to get the shade nailed.
EDIT: That said, I believe the last car to be built at Canley was a yellow Spitfire. I don't know when the final Dolomite was built so it could have been a few days or a week before the plant was shut. I have the list of Sprint and 1850 chassis numbers between mine and the final one but no dates.