If we take the registration off the existing car though, how do we scrap it? I assume it’s illegal to drive it to the scrapyard if it has no registration number?
Get them to come to you, you’ll get a far better price anyway as they’ll be recyclers rather than just your local yard that views having to dismantle it as a cost. I got rid of my last two scrap cars via online brokers and got £350-£410 for them when the “scrap” price weighing it in was about £150.
Although I think you can just apply for a new number if you really want to drive it again. The only difference is you can’t transfer a ‘new’ number that’s issued to you. They closed that loophole as people with classic cars were selling their original numbers to kit cars, Caterhams, ‘new’ Triumph motorbikes, etc.