The Toro Rosso driver raced on the full-length Mistral straight when he competed in the European Le Mans Series five years ago.
Hartley says having a longer straight would improve racing by forcing teams to run less downforce.
“A long straight line could potentially create more overtakes,” he said. “But I don’t think that will happen for tomorrow.
“I’ve tested and raced with the layout without the chicane. It makes things interesting because it’s less downforce with the long straight line. Turn 10 becomes more of a corner and so does the last sector with less downforce because of the long straight line.
“So maybe it’s a discussion point for next year but for right now we’re doing this layout.”
Hartley also tested extensively at Paul Ricard during his time at Porsche’s World Endurance Championship team.
“The good news here is there’s plenty of options. There’s hundreds of different options on this track. I’ve done a lot of testing with the long straight. I prefer it, personally, I think it’s got a bit more character and a bit more history as well.”
Advert | Become a RaceFans supporter and
2018 F1 season
- Honda’s jet division helped F1 engineers solve power unit problem
- McLaren Racing losses rise after Honda split
- Ricciardo: Baku “s***show” was Red Bull’s fault
- “Drive to Survive Episode 1: All to Play For” reviewed
- F1’s television and social media audiences rose last year