Startup Idea : cheaper taxis/cabs

Aren't taxis very expensive? Where I live taxis are really expensive. Let's think of an idea to make it cheaper to take taxis. A new taxi company with absurd cheap prices and normal wages for the drivers. The taxi can be used for promotion, polls/surveys and product samples. For example a company wants to receive feedback or spread their product. So they can cooperate with the taxi company and for example buy 1000 surveys/polls. Then during the drive the people have to edit this surveys/polls. Or a company could share for example a new perfume for women. Then the taxi driver gives every women a small sample and the chance to buy it. All in all, the people can take taxis cheaper and the taxis will spread and promote things and has this additional income.