Thanks for all the nice comments.
The car is actually an Alpina C2.5 converted from new by Sytner Nottingham. It was run as a demonstrator. The 2.7 badges were on the car when I bought it. Have looked into getting the C2.5 badges for the car but no luck apart from replicas. Even the replicas appear to be cԚ£45 each.
I have the original receipts for the car. The work Sytner carried out included ECU, cam, suspension, wheels, exhaust, trim bits, badges etc. 2 pages of receipt. Just shy of Ԛ£7k for the conversion in 1990!
The colour is Schwartz Black with Crimson leather. The car has been resprayed at some time hence the mirror finish. A good job done though.
As for the next bits and pieces - I am thinking about new suspension (currently a bit low I think) and as pointed out by the neighbours the exhaust is a bit loud. Then again, I only use it at weekends so why not make some noise!
Closer pic of interior.
