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Single lugnut on Gen 7 cars?

In making the switch to 18-inch tires with the Gen 7 car, NASCAR also is considering the use of a single lug nut to secure wheels. That would be another step toward bringing NASCAR in line with IndyCar, whose common chassis by Dallara has been pushed by team owners Roger Penske and Chip Ganassi (whose teams compete in both series) as a model for the Gen 7 on cost-savings components.

The move to a single lugnut (from the current five-lugnut wheel) could be viewed as a safety enhancement by greatly reducing the possibility of loose wheels, but it also would overhaul the dynamics of pit stops and likely de-emphasize the importance of tire changers.

NBC Sports