In 1949 he joined the Austin Motor Company, and eventually joined Aston Martin (1954). He is notable for his work on three engines, developing the alloy straight six-cylinder engine of the Aston Martin DBR2 racing car (1956), redesigning the company's venerable straight six-cylinder Lagonda (1957), and developing the Aston Martin V8 engine (1968).
The Lagonda engine received a new cast iron block with top seating liners, used in the DB Mark III that debuted in 1957. After modifications, the DBR2 engine was used in the DB4 (1958), DB5 (1963), DB6 (1965) and DBS (1967). It was used for the final time in the 1973 Vantage. A rare cross over following the end of the David Brown era with only 71 produced with the Straight 6 but the body of the AMV8. The V8 first appeared in the DBS V8 in 1969, going on to power Aston Martins for part of five decades before being retired in 2000. A prototype was fitted in the mid-'60s in a one-off DB5 extended 4" after the doors and driven by Marek personally,[4] and a normally 6-cylinder Aston Martin DB7 was equipped with a V8 unit in 1998.[5][6]
Marek and his wife moved to Italy in 1968, where he died in 1982.
^A biography with pictures of Marek, entitled Tadek Marek, which again refers to a 1967 article by Brian Joscelyne and Adrian Feather, Marek the man in Aston Martin Quarterly of the Aston Martin Owners Club.