Used models
A Porsche which has been as talked-about as the Taycan is going to attract the attention of affluent buyers who are used to being able to pay for what they want. If they haven’t got their name on the waiting list already, they will be happy to pay over the asking price to get a Taycan for the first few months at least.
Any cars which come up for sale in those first few months will either be from speculators looking to make a quick quid or might be dealer demonstrators. Either way, it’s likely to be cheaper to order a new car from the factory and wait than to take the used route until supply of used and new Taycans becomes a little more plentiful.