Lancia Delta S4 Stradale
Built to homologate Lancia's fearsome Group B rally car, the S4 Stradale featured an unprecedented twin-charged engine combining both supercharger and turbocharger for instant response across the rev range. The mid-mounted 1.8-liter engine produced 250 horsepower in street trim (versus 500+ in competition), driving all four wheels through a sophisticated AWD system. With composite bodywork and a tubular spaceframe, just 200 examples were built. The S4 remains one of the most extreme and technologically advanced homologation specials ever created.
Verify chassis number and original specification. Many have been modified or converted to rally cars. Original twin-charged engines are complex and expensive to maintain. Check for corrosion in tubular chassis and composite panels.
Exactly 200 road cars were built to meet Group B homologation requirements. Production ceased after Group B was banned following the 1986 season. Many examples have been modified or converted to rally specification.