Twin-Charged Terror: Driving the Wild Lancia Delta S4 Stradale | Henry Catchpole - The Driver’s Seat

Visit us at ---- Henry Catchpole is back on his favorite topic: Rallying! Of all the WRC Group B rally cars, the Lancia Delta S4 is the wildest, which makes the Stradale or street version very special indeed. This one is currently for sale with Girardo & Co and it should be one of around 200 in existence. But it’s not. Lancia was meant to build a couple of hundred to satisfy the homologation rules of Group B at the time, but someone was clearly a bit lax with their counting as it’s thought only around 70 or 80 were ever made. This is chassis number 033. So, the Delta S4 Stradale is a rare car. It is also a ground-breaking one because it is the first road car to use twin charging. As the name suggests, that means it has both a supercharger and a turbocharger on its four-cylinder engine. The idea is that the supercharger helps with response lower down in the rev range, while the turbocharger takes care of producing the big power once the exhaust gases are flowing