[prydey]

As for the tax perks being a major driver in the take up of larger vehicles, is there statistical proof of this?

Caravan sales over the last 5 years or so has been increasing exponentially almost. It stands to reason that larger cars capable of towing will also follow a similar trend.

Camping/4x4/off road industry is extremely healthy. Perhaps those who don't drive larger cars are just jealous that they aren't out enjoying this great country.