At what point would you get rid of your car and bike, walk or take mass transit? When gas reaches: $3.50 per gallon $4 per gallon $5 per gallon $6 per gallon $7 per gallon $8 per gallon $9 per gallon I wouldn't stop driving, no matter how expensive gas got. This may be irrelevant for people in the UK where mass transit is readily available and gas is already $6 a liter. I don't think I would be exaggerating to guesstimate that 90% of the US does not have any form of mass transit. So I wouldn't be surprised if many people responded they wouldn't stop driving no matter how expensive gasoline becomes.