Bear with me ………
My van is seventeen years old and paid for. For various reasons I need to commute to pick it up every day.
If I got shot of my car and ran a new van in place of a car I would always have a back up van.
Could I claim any tax concessions on it?
Brainy types only.
I don't know about the brainy types only answering.
Yes, you can run 2 different vans as a sole trader. But whatever you decide to do, you need to be able to justify to the receiver why you run your business the way you do. That 17 year old van has very little commercial value (apart from scrap value) with the receiver, so you are justified in having a new van that does have a value.
As long as your return every year to the receiver makes sense by fitting into their business algorithm, then they generally won't investigate you.
If you were using your new van to commute to where your old van is parked and then using the old van for work, then that would be considered private mileage by HMRC. The beauty about working from home is that the moment you get into the driver's seat to go to your first house to clean, then that's business mileage.