In the car dealership with 600 cars, 60% of the cars are hybrids, meaning there are 60/100*600 = <<60/100*600=360>>360 hybrid cars.
Out of the 360 hybrid cars, 40% contain only one headlight. a total of 40/100*360 = <<40/100*360=144>>144 cars.
The total number of hybrid cars with full headlights is 360-144=<<360-144=216>>216
#### 216