Belgium driver Thierry Neuville. (Photo: AFP/Pascal Pochard-Casabianca) |
Tanak came unstuck on the day's penultimate stage when he needed the best part of two minutes changing the damaged tyre on his vehicle.
That briefly opened the door for Elfyn Evans in a Ford Focus but the Welshman then surrendered the lead in the last stage to Hyundai's Neuville who will take a 4.5sec lead into Sunday's concluding day after claiming Saturday's last two stages.
"I think we managed quite well today. Even if in the morning we couldn't find a good feeling to push as hard as we wanted. But in the afternoon I was very confident in the car and was able to push in every stage. For tomorrow the same - repeat," said Neuville.
Evans was left to lament giving up an 11-sec advantage ahead of the day's final stage, a marathon 47km run at Castagniccia.
"The afternoon started well but went downhill. It was a surprise to lose so much in the last stage. Three or four seconds maybe, but 16sec is a mountain," said the Welshman.
World champion Sebastien Ogier is third overall in his Citroen, almost 45sec off the lead.
French driver Ogier was four points behind Tanak in the overall world championship standings heading into the Corsica race.
Tanak finished Saturday in sixth place, 1min 54.5sec off Neuville's lead.
What the stars mean:
★ Poor ★ ★ Promising ★★★ Good ★★★★ Very good ★★★★★ Exceptional