Every week Carl needs to drive additional 6 hours, so in two weeks that would make 2 * 6 = <<2*6=12>>12 additional hours.
Two weeks of driving 2 hours every day, means 14 * 2 = <<14*2=28>>28 hours of driving.
So during two weeks, Carl will drive 28 + 12 = <<28+12=40>>40 hours.
#### 40