Enable remains on course to bid for a historic third Prix de l'Arc de Triomphe after winning the Unibet September Stakes by seven lengths at Kempton.
John Gosden's brilliant mare was a 1-14 favourite to pass her final audition before next month's big date at ParisLongchamp, and she duly did so with predictable ease.
Enable was marginally slowly away, but Frankie Dettori already had her in front with a circuit to go on the way to victory in the Group Three on Kempton's Polytrack surface.
She moved clear into the straight and, in what seems sure to be her final race in Britain, she signed off emphatically - winning again here, as she did two years ago en route to her second Arc victory.
Kirstenbosch held on for second, at 33-1, just ahead of Melbourne Cup-bound Prince Of Arran.