be advised i know very little about cars. i have heard that turbo engines use gas more efficiently. does this mean that someone will get better gas mileage? yeah, it depends on how you drive the car, but lets assume that one drives the two cars the same. i ask because my mother is getting a new car and is very concerned about gas mileage. she is in her early 50's and is by no means a lead foot, so that 'extra power' is not going to tempt her to drive much differently. whats the consensus?