Luiz Razia concedes he needs to find more sponsorship if he wants to make his way onto the Formula One grid as talent is "second hand."
The Brazilian was signed to race for Marussia this season, however, after one pre-season test was given the boot when his sponsors failed to pay for his drive.
"F1 these days is all about the money and second hand is the talent - unfortunately I don't have money at the moment, so it is looking difficult to get back to it," Razia told Sky Sports F1 Online.
"We had the issue at the beginning of the year and that was the end and we are still trying to sort out the situation.
"Obviously it was not easy, but after that I got invited to run this season in the GT Open in the Bhai Tech McLaren and that has been a good experience up to this point.
"Our next race is at Spa in September and that is going really well."
Competing in the International GT Open, Razia says he is still dreaming of a future in F1 but needs money in order for that to happen.
"The end of August, into September we will still try, but if I don't see any signs of sponsorship then I will move to sportscars and do GT, Le Mans, something like that.
"It is good to look for a drive as a professional, instead of paying all my life.
"If August and September work out then I will still look at it, but it is very difficult to find £10 million nowadays. It is quite complicated."
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