Buzz is nothing like a beach; Only seats 5, no sleeping capacity, non elevating roof, no camping heater, no awning. Plus it’s wider than a Volvo XC90, so not great for tight car parks / country lanes.
The Buzz’s closest equilavent in terms of seats / load capacity is a Tesla model Y, which is approx £15k cheaper, with a far greater range & has a dedicated charging network; The £15k Saving would cover a full set of solar panels on your home roof which can be used to offset car + home electricity costs.
The Buzz looks nice though, but novelty will only get it so far.
Re plug in hybrids, electric range needs to be taken with a pinch of salt, especially if your drive is a ICE/Elec combo, as every kick down in ICE mode will take a little bit of juice from your electric range. But keeps the dealerships happy as they still get the revenue stream for the ICE servicing.