Our family of 4 rented 2 GoCars on the "Early Bird Special", 9am - 12 pm sport edition car. I would recommend getting there at 8:30 to get the maximum time. You need to fill out a waiver on an iPad (for each car), then you need to initial some paperwork and provide a CC for the security deposit and show your drivers license. Then you go out, get a helmet, and watch a 5 minute show on how to operate the car. They go over everything again and answer all questions before you leave. It took a few blocks to get used to it, but OMG!!!, this was the BEST part of our trip. My husband was a little unsure, uneasy, and hesitant to get these, but after the first 10 minutes he was having a blast! I've been coming to SF for over 15 years now and it was so fun to see the city in a way I never have before. I highly recommend this tour and this company. The next time we come to The City, we'll get the full day rental. Seriously, don't listen to the bad reviewers who complain about everything. The GPS was great, it always started, nothing was wet, the weather was great, but we also came prepared with gloves, hats and scarves (hello! It's San Francisco, it gets windy and chilly!! Rme), the staff was friendly. Can't wait to do it again!