On the question of distance and time from Florence Peretola airport to Vinci, it is 28.73 miles and 49 minutes. I investigated bus and train possibilities, but I ahve not yet discovered anything for Vinci, which appears to be off the beaten track.
 1: Start out going WEST on VIALE SPARTACO LAVAGNINI toward VIA ENRICO POGGI. 0.1 miles Map  
 2: VIALE SPARTACO LAVAGNINI becomes VIALE FILIPPO STROZZI. <0.1 miles Map  
 3: Keep LEFT at the fork to continue on VIALE FILIPPO STROZZI. 0.2 miles Map  
 4: Keep RIGHT at the fork to continue on VIALE FILIPPO STROZZI. <0.1 miles Map  
 5: VIALE FILIPPO STROZZI becomes VIALE BELFIORE. 0.3 miles Map  
 6: VIALE BELFIORE becomes PIAZZALE DI PORTA AL PRATO. <0.1 miles Map  
 7: Stay STRAIGHT to go onto VIALE FRATELLI ROSSELLI. <0.1 miles Map  
 8: VIALE FRATELLI ROSSELLI becomes PIAZZA VITTORIO VENETO. 0.2 miles Map  
 9: PIAZZA VITTORIO VENETO becomes PONTE DELLA VITTORIA. <0.1 miles Map  
 10: Stay STRAIGHT to go onto PIAZZA TADDEO GADDI. Pass through 1 roundabout. <0.1 miles Map  
 11: Keep RIGHT at the fork to continue on PIAZZA TADDEO GADDI. <0.1 miles Map  
 12: PIAZZA TADDEO GADDI becomes VIA DEI VANNI. 0.2 miles Map  
 13: VIA DEI VANNI becomes PIAZZA PAOLO UCCELLO. <0.1 miles Map  
 14: Stay STRAIGHT to go onto VIA DEL SANSOVINO. 0.3 miles Map  
 15: Stay STRAIGHT to go onto VIALE FRANCESCO TALENTI. 0.1 miles Map  
 16: Keep RIGHT at the fork to continue on VIALE FRANCESCO TALENTI. Pass through 1 roundabout. 0.3 miles Map  
 17: Stay STRAIGHT to go onto VIALE ETRURIA. 0.8 miles Map  
 18: Turn SLIGHT RIGHT onto STRADA DI GRANDE COMUNICAZIONE FI-PI-LI / SUPERSTRADA FIRENZE-PISA-LIVORNO. Continue to follow STRADA DI GRANDE COMUNICAZIONE FI-PI-LI. 18.2 miles Map  
 19: Take the ramp toward EMPOLI OVEST / PONTE A ELSA. 0.3 miles Map  
 20: Enter next roundabout and take 1st exit onto VIA PRIMO MAGGIO. 0.1 miles Map  
 21: Turn SLIGHT RIGHT onto VIA VAL D'ELSA / SP10 / STRADA PROVINCIALE VAL D'ELSA. Continue to follow VIA VAL D'ELSA. 1.2 miles Map  
 22: VIA VAL D'ELSA becomes SP11 / VIA PROVINCIALE LA MOTTA / STRADA PROVINCIALE PISANA PER FUCECCHIO. 0.2 miles Map  
 23: Enter next roundabout and take 1st exit onto SP112 / STRADA PROVINCIALE DELLA MOTTA. 1.4 miles Map  
 24: Turn LEFT onto STRADA PROVINCIALE MONTALBANO / SP13. 0.4 miles Map  
 25: Enter next roundabout and take 2nd exit onto VIA PROVINCIALE DI MERCATALE / SP13 / STRADA PROVINCIALE MONTALBANO. 2.3 miles Map  
 26: Enter next roundabout and take 1st exit onto SP13 / STRADA PROVINCIALE MONTALBANO. 0.8 miles Map  
 27: End at Vinci, Toscana IT  Map  
Total Est. Time: 49 minutes     Total Est. Distance: 28.73 miles  
                                 Advanced OptionsShortest Time
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The nice MapQuest map that can be used to interpret the above is at 
http://www.mapquest.com/directions/europe.adp?go=1&do=nw&rmm=1&un=m&cl=EN&qq=1ADqpk24ofDJKmAyur5Ad0kyL8DZZYhqavcEzEA7hyIJFSMIW0sOURmsSNS5WPrBl9W4qBnfA6EOrODSGNMRSMkMHD%252fcigH9s1CWNzH9SiLuT%252fJEH0fOd4P5L1tThj%252b9&ct=EU&r=f&rsres=1&1y=IT&1a=&1c=Florence&1z=&panelbtn=1&2y=IT&2a=&2c=Vinci&2z=