Can anyone answer this ???

[Griff]

The Ferrari Dino V6 engine was phased out in 1974, but 500 engines among the last built were delivered to Lancia. Production ended in 1975 when it was thought that only 492 were made (for 1976 season, the Group 4 production requirement was reduced to 400 in 24 months). Manufacturer of the car was Bertone in Turin, with final assembly by Lancia at the Chivasso plant. Powered by the Dino 2.4 L V6 engine that was also fitted to the rallying versions, but in a lower state of tune, it resulted in a power output of 190 PS (140 kW), giving the road car a 0-60 mph time of just under five seconds, and a top speed of 144 mph (232 km/h). The car was sold as the Lancia Stratos Stradale.
Lancia Stratos Turbo Group 5


For racing, the engine was tuned up to 275 PS (202 kW) for the 12v version, 320 PS (235 kW) for the later 24v version and even to 560 PS (412 kW) with a single KKK turbocharger. However, turbocharged versions were only allowed to compete in Group 5 and were never as reliable as their naturally aspirated counterparts.
Another unique Group 5 car is the Lancia Stratos HF of Austrian Rallycross driver Andy Bentza. The car was first driven by his Memphis team mate Franz Wurz, father of Formula One pilot Alexander Wurz. In 1976 Wurz claimed the first ever European Rallycross title recognised by the FIA with the car, by then still featuring a 2.4 litre engine with 12 valve head. For the ERC series of 1977 Wurz was entrusted with an experimental 24 valve engine by Mike Parkes, equipped with a special crankshaft to bring the engine capacity up to just under 3000 cc