My wife and I did a eight day, seven nights road trip in June 2022 from Southern California to southern Utah (and back) to visit various national and state parks in my 2021 Clarity Touring PHEV. This trip involved a wide range of freeway speeds (up to 80 mph in Utah), near constant use of air-conditioning (high temps in Utah were in the mid 90s to low 100 degree F), and significant elevation changes. I started with a fully charged battery and full gas tank, and ended the journey by topping up the battery and filling the gas tank. I pumped gas several times over the eight days, and charged the battery during four of the seven nights. Detailed records were kept. I drove almost all the time in HV mode. I drove 1914 miles, used 37.317 gallons of regular gas (including the final top up) and 35.47 kWh of battery charge (including the final top up). The battery charge use was calculated as follows: I kept note of the SOC at the start and end of each charging session. I added up all the percentage changes and multiplied the total by 14.5 kWh (the usable capacity of the battery.) If the 35.47 kWh can be assumed to have contributed 35.47 x (47/14.5) = 115 miles of range, then the total miles driven on gasoline would be 1914 - 115 = 1799 miles. This resulted in an effective gas mileage rate of 1799/37.317 = 48.21 miles per gallon. My wife and I are very pleased with the car’s efficiency. We tried to keep the battery level high by charging at the hotels. However, our hotel in Moab, where we stayed three nights, did not have an L2 charger and the Moab city hall charger was offline, and so I had to do HV+ a few times to charge the battery to approximately 60% SOC to help with steep climbs. @Mr.FixIt, I have (since the trip) purchased an OBDII reader and after 5269 miles on the odometer my battery capacity as of June 12, 2022 is 54.12 Ah. I took possession of the new car in September 2021. I did not find the 7 gallon gas tank to be a limitation. My 60+ year old body needs a break every 2.5 to 3 hours, and I used that as an opportunity to take a bathroom break and also fill up gas. I had never previously in my daily commutes found the seat to be uncomfortable, but after spending almost six hours one day driving this car, I found myself with a sore behind. Any suggestions for a seat cushion?