Thanks all... have decided, given the fact I’m meant to be on the ferry from Portsmouth at 9 in the morning, which means leaving home at 6, to take a bit of a punt and take the Gransport.
As I’ve said, I drove it around the block once it had freed up, and to drive there is no discernible difference. I really hope I don’t regret this decision.
I’m guessing this is what they call Italian character!
P.s. many thanks for the incredibly helpful responses. Another great example of what makes this forum so great!