Brendon Hartley has no doubt that Nico Hulkenberg will have no trouble adapting to the rigours of sportscar racing as he prepares to dovetail his F1 commitments with an outing at the Le Mans 24 Hours.

The German will compete as part of Porsche's driver line-up in a third 919 Hybrid LMP1 entry at the Le Mans 24 Hours and the Six Hours of Spa alongside Nick Tandy and Earl Bamber, alongside his full-time F1 drive with Force India.

Having already tested both the 2014 car and the updated 2015 version earlier this week, Hulkenberg will make his much anticipated LMP1 race debut in Belgium on May 2-3.

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According to Hartley, who made his LMP1 debut with Porsche last season and will continue to race alongside ex-F1 driver Mark Webber and Timo Bernhard in 2015, Hulkenberg's arrival is testament to the attraction and quality of WEC at the moment.

"I raced a bit with Nico a few years ago and I tested on the same day as him," he told "You could see he was enthusiastic about the project and it is a sign of the WEC that F1 drivers are interested in competing.

"Le Mans is such a special race and there aren't many racers who don't want to compete in it, so with a manufacturer like Porsche it is just a no brainer. It is great to have him on board

"He is one of the quickest drivers. We have a few quirky things on the car, such as four-wheel drive, a few toys to play with, a roof... but he has adapted well."

Hulkenberg wasn't set to be the only F1 driver to compete at Le Mans with Porsche with the manufacturer very close to agreeing terms with Fernando Alonso before his deal with McLaren-Honda in F1 ruled him out.