It was JohnF who was selling the car back then, I think he was after 13k - that was for a 10 year old car with a number of issues inherent to putting a cossie engine into such cars. Now it's a pretty much brand new, fully sorted car.
20-25k, isn't a great deal when you consider what's gone into it and that a new V8 engined car has just only 60% of the power, is a lot more costly to run and costs a fair wodge over 20k for a basic spec of car.