If you mean "Pull into the spot" yes it means drive in. Similarly "Pull into the garage" means drive into the garage. "Pull out into the street." Means move the car from the garage, parking space or another street onto the street in question. There are many other uses of pull in, I am just listing this one based upon you supplying "drive in". Notice in each instance I did not use "in" rather "into" or "onto".

Yes it does =) When someone say " pull in " it means "drive in" if you both are in a car.

Yes, it has a stronger sense of finishing the drive. For driving a car, you can also use "pull over", "pull out" and "pull up".

Yes, 'pull in' is indeed used for 'drive in'; For example: "He pulled into the parking-lot, and backed into a parking section." Another example: "She pulled into her driveway" Another example: "Let's pull into the drive-in for Taco Bell"