Toro Rosso are still open to the idea of changing the official name of their engine before the start of the 2017 season.
After the acrimonious semi-works relationship between Red Bull and Renault ended, Red Bull stayed with the French supplier for 2016 but sold the naming rights of the power unit to watch sponsor Tag-Heuer.
Now, as the junior team Toro Rosso also switches to Renault power, the Italian outfit is looking to follow suit with a similar rebranding deal.
On the final 2017 entry list released by the FIA, every detail was confirmed except the engine name for Toro Rosso, whose Renault power unit was listed as 'TBC'.
"Some companies are interested in buying the name," team boss Franz Tost is quoted as saying by Speed Week.
"As soon as we conclude a contract, we will change the name."
There are reports that Toro Rosso suffered multiple reliability problems last week, mainly with the new 2017-spec Renault power unit.
However, Tost said: "The car is good and both drivers gave positive comments about the car."
The new season gets under way in Melbourne on March 26.
