Maxios has a variety of enticing options after taking the Prix du Moulin at Longchamp.
Stephane Pasquier, who had already received a particularly good piece of news earlier this week when his three-month ban for testing positive for a banned substance was suspended at a civil court tribunal, helped himself to the Group One with a shrewd piece of riding.
Jonathan Pease's five-year-old had already proved his liking for the Paris track when hitting the mark at the same level in May's Prix d'Ispahan and Pasquier was the only jockey to stick close to Flotilla's pacemaker Sage Melody.
Maxios found himself alone and was well away from his rivals turning into the home straight as Pasquier pushed him out to finish five lengths clear of Frankie Dettori and Olympic Glory.
The Richard Hannon-trained runner-up, who was far closer but in the same final position when beaten by Moonlight Cloud on his return from an absence in the Prix Jacques le Marois, made up a fair bit of ground from the rear.
Pease said: "The ground suited and there was a good pace. I should think he'll go to Ascot now for the QEII."
However, the Niarchos family's racing manager Alan Cooper said: "The tactics were to be positive and the ground was magnificent.
"We'll have to sit down and talk to the owner about what to do now. He's invited to the Cox Plate but would have to go into quarantine next week."
Hannon's son and assistant, Richard Hannon jnr, said: "Frankie said he didn't like going round the bend and lost 10 lengths."
Rae Guest's Mirza dead-heated with Dibajj in the Prix du Petit Couvert.
British visitors regularly lift this Group Three sprint, a lead-up race for the Prix de l'Abbaye over course and distance, and Mirza certainly had the pedigree to do well.
The lead changed a number of times in the final stages, and William Buick's mount could not be separated from the lunging Dibajj, with Catcall and the Michael Bell-trained Riskit Fora Biskit nostrils away in third and fourth respectively.
Mirza's owner-breeder Chris Mills said: "We were confident coming here as her dam Millyant won this race twice. Hopefully we'll be back here in three weeks now."
Spanish-trained veteran Domeside picked up the Prix Gladiateur and earned his shot at the Group One Prix du Cadran over the Arc weekend.