When it raced: 1969 (for the Guillotine wing)
The late 1960s were an exciting time in Formula One, as the cars had just started to sprout wings. Eventually, engineers realized that placing the wings higher meant they'd work better. Then, almost inevitably, someone wondered what would happen if you put another wing on the car, right over the front wheels. The practice was ultimately banned because it was frightening -- you get one guess why the M7C is sometimes called "the Guillotine."