The Dallara T12 or Dallara FR35-12 is a racing car developed by Italian manufacturer Dallara for use in the World Series Formula V8 3.5, a series originally formed from the World Series by Renault top category. The T12 is the third generation of car used by the World Series by Renault/WS Formula V8 3.5, and was introduced at Silverstone on August 24, 2011.^[2]

Dallara T12

Beitske Visser drives her Dallara T12 Formula Renault 3.5 car during the 2014 Formula Renault 3.5 Aragón round
Category	World Series Formula V8 3.5
Constructor	Dallara
Designer(s)	Luca Pignacca Andrea Toso
Predecessor	Dallara T08
Technical specifications[1]
Chassis	Carbon-fibre monocoque with honeycomb structure
Suspension (front)	Pushrods, Sachs single two-way adjustable spring-damper
Suspension (rear)	Pushrods, Sachs twin two-way adjustable spring-damper
Length	5,070 mm (200 in)
Width	1,930 mm (76 in)
Height	1,050 mm (41 in)
Axle track	Front: 1,630 mm (64 in) Rear: 1,530 mm (60 in)
Wheelbase	3,125 mm (123 in)
Engine	Zytek ZRS03 3,396 cc (207 cu in) V8 90° cylinder angle normally-aspirated mid-mounted
Transmission	Ricardo 6-speed sequential semi-automatic gearbox
Power	530 hp (395 kW)
Weight	1,358 lb (616 kg) (excluding driver) 1,523 lb (691 kg) (including driver)
Fuel	Elf
Lubricants	Elf
Tyres	Michelin O.Z. racing wheels
Competition history
Notable entrants	All World Series Formula V8 3.5 teams
Notable drivers	All World Series Formula V8 3.5 drivers
Debut	2012 Formula Renault 3.5 Aragón round
Races Wins Poles F/Laps 90 90 90 90
Constructors' Championships	4
Drivers' Championships	4

The T12 chassis featured a new, 530 bhp (400 kW) V8 engine supplied by British firm Zytek Motorsport and designated as ZRS03. The car also featured a new gearbox developed by Ricardo and a Drag Reduction System similar to the one first used in the 2011 Formula One season. As the WS Formula V8 3.5 is a spec series, the T12 is raced by every team and driver on the grid.