Marcello, as it turns out, is the driver of the number 64 bus, and if you've been on the number 64 bus, you know that it's driven with the same kind of exuberance as Marcello demonstrated on his scooter.
Marcello resulta ser el conductor del autobús 64. Y si han subido al autobús 64 ya sabrán que lo conduce con el mismo entusiasmo que Marcello demuestra con su scooter.