Historic Racing Technology Issue 29

Keeping Senna’s legacy moving: Forty years since Ayrton Senna danced to his first F1 victory at a rainy Estoril, Chris Dinnage tells Peter Innes how Classic Team Lotus keeps his Lotus 97T running

The rally car that never was: The Audi Group S rally car was a top-secret project that was ultimately shelved when the series was cancelled. Hal Ridge tells the story of its latest incarnation

Fuel up: Chris Pickering takes his 90-year-old Austin Seven up Prescott’s legendary hill climb to test out the latest sustainable fuel from Coryton

Breaking new ground: Could a 1950s Argentine sports car really be capable of harnessing ground effect?Former F1 designer Sergio Rinland heads to the Catesby Tunnel to find out

Thrilling Climax: The Coventry Climax FWE was a brilliant but fragile engine in period. Now Tolman Motorsport tell Chris Pickering how they have made them reliable for historic racing

Racing apprentice to OSCA winner: In this extract from his new book Inside OSCA: The Bolognese miracle that amazed the world, Carlo Cavicchi explores the history of a unique carmaker