What is the fine-grained topic of the following text: “If you take into consideration that we have paid a lot of money [to Renault] and didn’t see progress as we had expected, then there must be the question of why not go back to Ferrari - a partner we know and who also makes sense logistically,” Tost commented. Only return the topic.
Considering switching back to Ferrari as an engine supplier in motorsports due to insufficient progress with Renault.