I got mine originally as I used the mog for business and I got fed up with people's comments about how much I must be making...I was buying a new one every 2 or 3 years. So I just wanted an ageless one. When I went back to an older car the reg m11tok wasn't old enough so I put it on retention. My current plus 4 just has it's original reg.
Actually it was a disappointment to me. For many years my client's comments were all about what a lovely car, work of art, do you look after it yourself etc. then, over a period of only 2 or 3 years all the comments changed to.. they're worth alot of money and suchlike. Something got spoiled in society.
Nick