Vehicle's engine stalled (shuttered, acceleration lost, felt like choking) at highway speeds, about 50-60 mph, creating a dangerous situation and i needed to pull over onto the shoulder immediately as the car decelerated to under 30 within seconds. the check engine light came on soon after. searched "2009 infiniti g37 engine sputtering" with hundreds of similar results, somehow infiniti dealerships were never able to reproduce the defect. this car is extremely dangerous and infiniti needs to start placing human lives over their sales.