My Model 3 rarely got better than 3.2 miles per kWh in real world driving, even in warmer weather. My Touring is currently getting 3.2 in the dead of winter. So I do expect it to get up in the higher 3s come spring. Likely around 3.8. I'm sure I could get over 4, but only if I were careful to keep speed down, limit elevation changes, etc. And only on extended highway driving, which is the only time it matters, since I never drive over 300 miles in a single day in the city.