Toro Rosso have had an eventful life since the marque morphed out of Minardi. Last season, the team ran to their own rules with the V10 engine, and Tonio Liuzzi's pace at the Bahrain season opener ruffled a few feathers. After that, the team's form subsided and so did the fuss, despite the FIA granting the Cosworth a few extra revs from mid-season.
This year, we have Toro Rosso embroiled in the saga of customer cars - although co-owner Gerhard Berger, rightly perhaps, insists that the phrase does not properly describe what Red Bull has done. As has been clear for some time, Adrian Newey's design group, now known as Red Bull Technology Ltd, has - apparently within the framework of the Concorde Agreement - produced a design that can take both the Renault and Ferrari engines.
Naturally, the two engines have different installations and associated systems, so the two cars are far from identical. Some of Toro Rosso's own design team contributed to the customising process for the Italian V8, and in addition parts for the Toro Rosso have also been made by a wide range of outside suppliers, so it is not simply built from a kit provided by Milton Keynes. But nevertheless there is there is much in common between the two designs, and that's what has riled the opposition.