Toro Rosso team principal Franz Tost says he would welcome a rumoured takeover of the team by Renault.
Toro Rosso has launched its 2015 F1 car, the STR10, at Jerez in Spain.
Toro Rosso had to choose which of their drivers to promote to Red Bull and which to drop following a season blighted by reliability problems.
Daniil Kvyat will be the first driver to fall foul of the new penalties for using too many engine components.
Toro Rosso and their new 19-year-old Russian racer Daniil Kvyat face an uphill struggle to get their problematic new Renault-powered car working.