References consumption for Taycan s wrong

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I paired ABRP with my Taycan Cross Turismo 4S last weeks. I used ABRP during couple of trips, at temp around 0 C, at windy and/or rainy weather. Reference consumption at 110 was calculated for 258Wh/km. It’s IMO to high, it leads to wrong simulations. I simulated trips I’ve driven and in order to match the final consumption and SoC the reference value must be between 195 and 220. I simulated it in summer (no OBD then) and my matching was at 195.
One of the reason is that assumed usable capacity of a battery (performance plus battery) is bigger than assumed by an app. Matching my trip consumption led me to the SoC at destination lower than real SoC. So I set battery degradation to 0% (my car is exactly 1 year old and 26kkm driven).
Please analyze the data for Taycans, without altering calculated settings my trip plans are very inaccurate (very pessimistic).