Is that Pironi stationary? It is! My goodness.
This isn't any tunnel of course. It's the tunnel that makes up part of the Monaco Formula 1 circuit.
Looking back towards the start of the tunnel, this was where Didier Pironi ran out of fuel on the last lap of the infamous 1982 Monaco Grand Prix, where the lead changed hands five times in the final two and a bit laps.
The quote is from Murray Walker's commentary.