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I wish they still had tufts on the cars when they do these tests.
I have seen the tuft and smoke combo tests done on the RX-7, but not much else.
When looking at the smoke on the A class, you can't even see a difference between it, and and old pickup truck.
With tufts, you really see what's going on with the airflow, all along the sides of the car.
I'd really like to know why manufacturers did away with tuft testing.
Perhaps they indeed still do tuft test, but keep the pretty smoke pictures for PR use
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