Formula One could have an American constructor on the starting grid next year after the governing FIA approved an entry for NASCAR team owner Gene Haas.

The International Automobile Federation said it was also considering another application made by former F1 team principal Colin Kolles.

No further details were given but an FIA spokesman confirmed that former Jordan, Midland, Spyker, Force India and HRT principal Kolles was behind Forza Rossa with Romanian partners.

The FIA also announced after a meeting of its world motor sports council in Marrakech, Morocco on Friday that there would be a meeting of all the teams on May 1 to “clarify the means to achieve a substantial F1 team cost reduction”.

FIA president Jean Todt told reporters at the Bahrain Grand Prix last week that plans to impose a cost cap in 2015 had been abandoned and measures would have to come through regulation changes instead.

The governing body said a study into the noise of the new V6 turbo hybrid engines, which critics and fans have said is not loud enough, was underway with preliminary results expected shortly.

Sign up to our free newsletters

Get the best updates straight to your inbox:
Please select at least one mailing list.

You can unsubscribe at any time by clicking the link in the footer of our emails. We use Mailchimp as our marketing platform. By subscribing, you acknowledge that your information will be transferred to Mailchimp for processing.