Hello ! Have a few questions about taxis. Just posted it here… 1) How old are taxis so on average? 2) How long is the service life? 3) How high is the consumption in liters on average at BENZINERN !? 4) What KM-performance have taxis so on average per year ? Need the info for a project at a vocational high school. We want to see when and where the investment in taxis is worthwhile to convert the car to gas. Please ask for as accurate information as possible. Ideally be I BENZINERN. Thank you very much!