Hi guys. Did try to send earlier apologies if it shows up eventually!! Advise for a reshell. Anyone tried to obtain a date relates reg from dvla. Using certain parts allocate a score and they will give you a new’ old ‘ reg. mean anything to anyone? Thanks

What that means I believe is you can out an older car into a new shell and have it resigned as the older car date if you use enough of the old part's
How you go about it is another question

You can’t, legally.

If the replacement chassis is used, it’s a Q plate.

https://www.gov.uk/vehicle-registration/radically-altered-vehicles