The Red Bull RB3 was designed by Adrian Newey, who earned a reputation as one of the most successful F1 designers with Championship-winning cars at both Williams and McLaren. In order for Red Bull Racing and Toro Rosso to use the chassis, Newey was employed by 'new' consortium named Red Bull Technology. This provided a loop-hole for STR around the prohibition of chassis sharing, as both teams were legally using a car developed by an 'independent' third party.
The Red Bull RB3 was designed by Adrian Newey, who established himself as one of the most renowned F1 designers with Championship-winning cars at both Williams and McLaren. In order for Red Bull Racing and Toro Rosso to employ the chassis, Newey joined 'new' consortium Red Bull Technology. This allowed STR to bypass the prohibition on chassis sharing, as both teams were legally utilizing a car developed by an independent third party.