Your driver will meet you at your centrally-located accommodation in Rome in the morning to start your tour of the city. During the tour, your driver will be able to give you information about the sites you're going to visit, but will not be able to leave the vehicle to enter the sites with you.
The tour will include drive-by picture stops and short visits to the following attractions: The Colosseum (you will see just from the outside), Circus Maximus, Temple of Hercules, Temple of Portunus, Capitoline Hill (from where you can have a good view of the Roman Forum from the outside), Piazza Venezia, the square of Santa Maria Sopra Minerva, Pantheon, Piazza Navona, and St. Peter's Square. You may choose to upgrade your tour by adding a guide.
A private licensed guide (if booked) will join you and your driver during the tour. The guide will be able to give you detailed information about every site you'll visit, from both inside the car and walking outside with you. The guide will be allowed to leave the vehicle with you when you visit the attractions.
There are so many amazing things to see in Rome, extra hours could help you to cover more. Some suggested Itineraries are below but, because this is a private tour, they can be adjusted or modified to fit your needs.
At the end of the tour your driver will take you back to your accommodation in Rome.
Trevi Fountain, Spanish Steps, Column of Marcus Aurelius, Campo De' Fiori, Triton Fountain, Via Veneto, Palazzo di Giustizia, Mausoleum of Augustus, Piazza del Popolo, Pincio Hill, and Castel Sant'Angelo
Visit inside the Colosseum and Roman Forum, or a visit inside the Catacombs
St. Mary Major, St. Paul Outside the Walls, St. John Lateran, St. Peter's Basilica