"Is dangerous cycling a problem" BBC

The problem with cars is - they need to be driven often in order to function properly.

I own a roadster I haven't used since last year. I've noticed during the last MOT the emissions become very high. And the engine will probably pack up soon, as there's no lubrication.

Hence the success of the car/van-sharing schemes. You get a brand-new vehicle which is used every day and only pay per journey and the car dies of mileage instead of rust.