Buying a Spanish reg vehicle in Uk and driving to Spain

PGA wrote:Just following up on this as I often muse on the same idea but as a UK resident I cannot work out how I would transport the vehicle in the UK to the port, unless I arranged for a truck to transport it from the dealership to meet it at the port/chunnel itself?

There are many companies who will transport a car / motorbike etc; pick up at UK address and deliver to Spanish address. I used Cartranspain who picked my car up from a car park at Gatwick Airport and delivered it to my door in Los Altos. Excellent service with regular status updates.