US ride sharing service Sidecar says that, along with transporting people, it is making same day deliveries of packages. The startup, whose backers includes British tycoon Sir Richard Branson, says it has been experimenting with delivering flowers, groceries, hot food and other items in its home city, San Fransisco, for six months. It says it is now ready to expand the service to other US cities where competitors Uber and Lyft operate. Co-founder, Sunil Paul, says he expects same day deliveries