Just as a side note, while the ZEBRA document doesn't define minibuses/single deck size the DfT generally define a small PSV as up to and including 22 passenger seats, with a large PSV being 23 seats or more. The document doesn't state full size single deck, just single/double deck and that minibuses/coaches are excluded. If the same criteria applies then the 9.2m electric Solos, equivalent to the existing Durham P&R fleet, should be covered.