Getting to Mugello
Buongiorno,
If you are curious about visiting towns along the way from Venice to Florence, then definitely get a car and enjoy a leisurely drive.
However, if you are really planning on spending your time exploring Tuscany then I would train it into Florence and pick-up your car there. The time is just about the same - but it is so much more relaxing!
Mugello and Florence have so much to offer! You can easily spend all four days wandering the area.
Normally when I plan on visiting Venice or taking family from Florence - I book the train. They are convenient and frequent services and I spend my time just enjoying the scenery.
Buon Viaggio,
Donna Denise