During many of the tours (but not all!) it’s much better to have a private car. Sometimes it’s just necessary. May be you will need a car for personal business. I can provide for you a car or mini van of different type/size with a professional driver. I work only with the best and most professional drivers in St. Petersburg, whose perfect knowledge of the city very often will allow you to avoid traffic jams.
Probably you will need a car or mini van to meet you at the airport. When you come to a different country, you will feel much better if you have someone to take care of you at the very beginning and also, in our country usually it’s cheaper to order a transfer in advance, than to take a regular taxi in the airport. I can provide a transfer from the airport (railway station) to your hotel as well as transfer from the hotel to the airport (railway station).