We were there a few years ago and will be coming for the day from St Martin in August. Before we walked from the pier across the street and there was a rental company but I can't remember their name. Would appreciate the name or any names. Have rather rent from a company with office and car in Gustavia rather than from office in St Jean (even if they come to meet you) since we'll just be there for 3/4 day.
Can't wait to return.