Valtteri Bottas is expecting a jump in performance with his Williams FW37 at the circuit where he recorded his maiden Formula 1 podium.

Williams enjoyed a successful Austrian Grand Prix last season, notching up its only 1-2 qualifying of the year, while Bottas went on to secure his first rostrum finish of his F1 career by finishing third behind the Mercedes duo of Nico Rosberg and Lewis Hamilton.

Bottas says he is a huge fan of the Red Bull ring, which made its highly anticipated return to the F1 calendar last year, and feels his Williams team has a strong package to challenge at the front this weekend after collecting its first podium of 2015 in Montreal last time out.

"It's great to be going back to Austria," Bottas said. "Last year, as a team we had strong qualifying with a front-row lockout, and in the race I achieved my first Formula One podium. The track, with its long straights and a mixture of slow and high speed corners requires good straight line speed and strong aero efficiency from the car.

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Williams is set to bring a series of upgrades on its FW37 which Bottas believes will enable him to make significant progress and close the gap on Ferrari.

"With the upgrades we are bringing here, we are expecting another strong weekend."