Toro Rosso STR4

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Toro Rosso STR4

Sébastien Bourdais driving the STR4 at the 2009 Spanish Grand Prix
Category	Formula One
Constructor	Toro Rosso
Designer(s)	Adrian Newey (Chief Technical Officer) Geoff Willis (Technical Director) Rob Marshall (Chief Designer) Peter Prodromou (Head of Aerodynamics)
Predecessor	Toro Rosso STR3
Successor	Toro Rosso STR5
Technical specifications
Chassis	carbon-fibre and honeycomb composite structure
Suspension (front)	cast titanium uprights, pushrods, carbon-fibre upper and lower wishbones
Suspension (rear)	cast titanium uprights, pullrods, carbon-fibre upper and lower wishbones
Engine	Ferrari 056 (2008-spec) 2398cc V8 18,000 RPM Limited
Transmission	7-speed sequential
Fuel	Shell
Tyres	Bridgestone
Competition history
Notable entrants	Scuderia Toro Rosso
Notable drivers	11. Sébastien Bourdais 11. Jaime Alguersuari 12. Sébastien Buemi
Debut	2009 Australian Grand Prix
Last event	2009 Abu Dhabi Grand Prix
Races Wins Podiums Poles F/Laps 17 0 0 0 0

The Toro Rosso STR4 was a Formula One car which Scuderia Toro Rosso used in the 2009 Formula One season. The car was revealed to be a Red Bull RB5 with a 2008-spec Ferrari 056 engine in Barcelona on March 9, 2009. It was revealed before the testing session.^[1]

The Toro Rosso STR4 was the last-ever Toro Rosso car to be built by its senior sister team Red Bull Racing, as from the 2010 season onwards Toro Rosso switched to in-house designed cars until the Scuderia AlphaTauri era.