GM’s “Woodward Test” began as early as 1967 when the automaker sent engineers to street test its manual transmissions in real-world driving situations. The cars were subjected to numerous high-torque launches and high-rpm shifts -- hijinks similar to those that occurred on Woodward Avenue, Detroit's prime locale for street racing back in the 1960s.
“We’ve been evolving the Woodward test to make sure our transmissions live through repeated performance-style shifting,” said Brad Burr, GM assistant chief engineer for manual transmissions. “Of course, we encourage safe driving, but we know burnouts and quick shifting are the reality. We have to design and engineer our transmissions to succeed in every possible scenario, including the street.”
GM continues the test today, which it claims has led to improved durability for transmission internals, such as clutches and gears. “This is one of the ways we are able to offer one of the best powertrain warranties in the business,” said Bur. “We use this test on all our performance manual transmissions like those found in the Chevrolet Corvette and Camaro.”
Source: GM, YouTube