thanks... i belive ur right .. when i seach Arriva/bayliner the shape and looks are very simmilar to mine...
Cant find the right model .. i can see the most model is with a "spilt" front windscreen for front access mine is closed with a small storageroom in front.
Also i find it mystic there is embedded in the leather seats the name "thunderbolt" ... looks original !
but nice to feel a bit closer to the mystery .. thanks