James Calado says it is becoming increasingly difficult for talented young drivers to get noticed in the upper echelons of motorsport if they don't come with the caveat of significant financial backing.

The former Force India F1 test driver moves away from single-seaters in 2014 after landing a drive in the World Endurance Championship with AF Corse in the LMGTE Pro category, becoming the first British driver to secure factory Ferrari contract since Eddie Irvine.

The switch in disciplines comes after Calado's career threatened to stall following his second season in GP2, where he claimed two wins en route to third in the standings, the Briton joining champion Fabio Leimer in making the move to WEC as a result.

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Indeed, Calado is just one of several drivers forced into looking elsewhere for drives due to a financial shortfall that requires him to bring up to ?20 million to fund a drive in Formula 1. Though he understands why teams will favour financially-backed drivers, he says the situation is making it too difficult for those with just talent to rely on.

"I always say you can see why they do it - they need the money," he told Crash.net. "They can gain more time from developing a car than from a driver. A new front-wing will gain more tenths than someone braking a little bit later.

"There have always been pay drivers, but especially now it seems to have gotten too much. Too much money to be in F1 and too many people paying to be in F1. It just doesn't make it very attractive and it's very tough for young drivers coming through.

"I wouldn't rule it [returning to single-seaters] out. There were F1 opportunities last year and there may be this year, but if it involves a ridiculous amount of money, it's a no go. Where do you find that money in these current times if you don't already have a wealthy background?

Touching on his own situation, Calado says the chance to join Ferrari - after beating 2013 GP2 runner-up Sam Bird in a shoot-out - and drive a potential title-winning car was an offer that was too good to refuse.

"I wanted to be somewhere where I am in a winning team, around professional people and not paying a ridiculous amount of money to do what you love to do, so the perfect place for me is to be at Ferrari, as a professional racing driver with a championship winning car. It attracts me more than ?20 million to do a year in Formula 1."