I'm traveling soon – to a city near you?! – and I the price of renting a car is roughly the same (slightly cheaper) than renting a "premium" bike! Were I to rent a simple "bicycle", I would still pay ~75% of the price of renting a car!
I imagine that bicycle rentals are an extremely small-volume business in my destination city. Too bad. It's actually faster for me to get around where I'll be on a bike than the bus (and there is no train). Maybe I can borrow a bike and forego both of the exorbitant prices! Wait, there *is* a weekly rate ... Bike wins (60% of the car) for 4+ days. Still. I'm comparing renting a car with renting a bicycle.