I was thinking common as muck equals......£
Rare and sought after equals.....................££££££££.
I mean, you see once common BMC/BL tat like the Mini/Austin 1100/ Marina fetching a few bob now.
We live in hope.
My sister had a 1300 until recently, and I bought an Avenger at the same time. The usual conversations with the general public were
I learnt to drive in one of those,
that was my first car or
my Mum had one. Or Mum had both.... The same thing happens when you see drivers in their late twenties driving around in early 90s cars whether they're the stuff that was desirable then or the ordinary stuff like Rover 200s that were the 1100 equivalent. This has always been the case.
Your Signum has a while to go before that type of nostalgia lifts the desirability and value. It might not happen at all; just look at the market for the very few Crestas that are left.
I can't believe I just used desire and Signum in the same sentence