Sierra RS500 Cosworth
1987




Group A racing regulations of that time allowed manufacturers to build an evolution model of a homologated car. The amount of evolution cars that had to be sold for public use was at least 10% of the overall model production which made 500. Because of this, Ford had already planned to put these 500 original Sierra Cosworths in storage when the RS Cosworth was in the planning stage. 


Produced by Tickford for Ford, the RS500 was to be entered into the Touring Car championship, the plan by Ford Motorsport was to go out and beat the Rover Vitesee that were dominating the series at the time. 

Modification were made to the standard spec RS Cosworth, that made the RS500 a nice road but would allow for a fabulous race car. 

The cd factor of the 500 made it a fraction slower than the standard RS Cosworth, this was due to the additional aerodynamic aids applied to the 500 (lower front bumper splitter, lower boot spoiler & gurney strip of the main rear spoiler) . All in all made the car much more stable at very high speeds (150mph +) need for the races. 

Stats :- 

Original cost : £19950 
produced: 1987 
Homologation : 1987 500 off 
Engine : 1993cc 16v Twin OHC Ford Cosworth YBD, Stronger cylinder block. 
Garrett T4 turbocharger. 
Larger intercooler. 
Second fuel injection rail (Extra 4 injectors were fitted, but weren't functioning in road trim). 8 in total. 
Power : 224bhp @ 6000rpm 
Modified rear suspension mounting points with alternative pick-up points for trailing arms. 
15 x 7 Alloy wheels 
Fog lamps removed & replace with brake cooling ducts. 
Revised Front bumper for better air flow into the engine bay. 
Finish :- (392) Black, (52) Diamond white & (56) Moonstone Blue.