Taxis come in all shapes and sizes, but all have a sticker in the back window which indicates the rate per kilometre. Luxury sedans are the most expensive, at £¤2 per kilometre with a minimum fare of £¤12; the common red "bulletheads", which have replaced the cheap but polluting miandis, or bread vans, charge £¤1.2 per kilometre with a minimum of £¤10. Using a taxi after 11pm will incur a surcharge of twenty percent. Most drivers are good about using their meters; if they don't put it on, you can insist by saying " da biao ". They're generally honest, but if you're concerned about being taken on an expensive detour, have a map open on your lap.